diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5d7d9ffcf..356e6f08d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Profile: add RSS link to user profiles.
 - Posts: fix posts filtering.
 - Chats: reset chat message field height after sending a message.
+- Admin: allow to manage announcements.
 
 ### Changed
 - Chats: improved display of media attachments.
diff --git a/app/soapbox/actions/admin.ts b/app/soapbox/actions/admin.ts
index e24999aa1..52be03ac2 100644
--- a/app/soapbox/actions/admin.ts
+++ b/app/soapbox/actions/admin.ts
@@ -1,13 +1,18 @@
+import { defineMessages } from 'react-intl';
+
 import { fetchRelationships } from 'soapbox/actions/accounts';
 import { importFetchedAccount, importFetchedAccounts, importFetchedStatuses } from 'soapbox/actions/importer';
+import toast from 'soapbox/toast';
 import { filterBadges, getTagDiff } from 'soapbox/utils/badges';
 import { getFeatures } from 'soapbox/utils/features';
 
 import api, { getLinks } from '../api';
 
+import { openModal } from './modals';
+
 import type { AxiosResponse } from 'axios';
 import type { AppDispatch, RootState } from 'soapbox/store';
-import type { APIEntity } from 'soapbox/types/entities';
+import type { APIEntity, Announcement } from 'soapbox/types/entities';
 
 const ADMIN_CONFIG_FETCH_REQUEST = 'ADMIN_CONFIG_FETCH_REQUEST';
 const ADMIN_CONFIG_FETCH_SUCCESS = 'ADMIN_CONFIG_FETCH_SUCCESS';
@@ -77,16 +82,45 @@ const ADMIN_USERS_UNSUGGEST_REQUEST = 'ADMIN_USERS_UNSUGGEST_REQUEST';
 const ADMIN_USERS_UNSUGGEST_SUCCESS = 'ADMIN_USERS_UNSUGGEST_SUCCESS';
 const ADMIN_USERS_UNSUGGEST_FAIL    = 'ADMIN_USERS_UNSUGGEST_FAIL';
 
-const ADMIN_USER_INDEX_EXPAND_FAIL   = 'ADMIN_USER_INDEX_EXPAND_FAIL';
+const ADMIN_USER_INDEX_EXPAND_FAIL    = 'ADMIN_USER_INDEX_EXPAND_FAIL';
 const ADMIN_USER_INDEX_EXPAND_REQUEST = 'ADMIN_USER_INDEX_EXPAND_REQUEST';
 const ADMIN_USER_INDEX_EXPAND_SUCCESS = 'ADMIN_USER_INDEX_EXPAND_SUCCESS';
 
-const ADMIN_USER_INDEX_FETCH_FAIL   = 'ADMIN_USER_INDEX_FETCH_FAIL';
+const ADMIN_USER_INDEX_FETCH_FAIL    = 'ADMIN_USER_INDEX_FETCH_FAIL';
 const ADMIN_USER_INDEX_FETCH_REQUEST = 'ADMIN_USER_INDEX_FETCH_REQUEST';
 const ADMIN_USER_INDEX_FETCH_SUCCESS = 'ADMIN_USER_INDEX_FETCH_SUCCESS';
 
 const ADMIN_USER_INDEX_QUERY_SET = 'ADMIN_USER_INDEX_QUERY_SET';
 
+const ADMIN_ANNOUNCEMENTS_FETCH_FAIL    = 'ADMIN_ANNOUNCEMENTS_FETCH_FAILS';
+const ADMIN_ANNOUNCEMENTS_FETCH_REQUEST = 'ADMIN_ANNOUNCEMENTS_FETCH_REQUEST';
+const ADMIN_ANNOUNCEMENTS_FETCH_SUCCESS = 'ADMIN_ANNOUNCEMENTS_FETCH_SUCCESS';
+
+const ADMIN_ANNOUNCEMENTS_EXPAND_FAIL    = 'ADMIN_ANNOUNCEMENTS_EXPAND_FAILS';
+const ADMIN_ANNOUNCEMENTS_EXPAND_REQUEST = 'ADMIN_ANNOUNCEMENTS_EXPAND_REQUEST';
+const ADMIN_ANNOUNCEMENTS_EXPAND_SUCCESS = 'ADMIN_ANNOUNCEMENTS_EXPAND_SUCCESS';
+
+const ADMIN_ANNOUNCEMENT_CHANGE_CONTENT    = 'ADMIN_ANNOUNCEMENT_CHANGE_CONTENT';
+const ADMIN_ANNOUNCEMENT_CHANGE_START_TIME = 'ADMIN_ANNOUNCEMENT_CHANGE_START_TIME';
+const ADMIN_ANNOUNCEMENT_CHANGE_END_TIME   = 'ADMIN_ANNOUNCEMENT_CHANGE_END_TIME';
+const ADMIN_ANNOUNCEMENT_CHANGE_ALL_DAY    = 'ADMIN_ANNOUNCEMENT_CHANGE_ALL_DAY';
+
+const ADMIN_ANNOUNCEMENT_CREATE_REQUEST = 'ADMIN_ANNOUNCEMENT_CREATE_REQUEST';
+const ADMIN_ANNOUNCEMENT_CREATE_SUCCESS = 'ADMIN_ANNOUNCEMENT_CREATE_REQUEST';
+const ADMIN_ANNOUNCEMENT_CREATE_FAIL    = 'ADMIN_ANNOUNCEMENT_CREATE_FAIL';
+
+const ADMIN_ANNOUNCEMENT_DELETE_REQUEST = 'ADMIN_ANNOUNCEMENT_DELETE_REQUEST';
+const ADMIN_ANNOUNCEMENT_DELETE_SUCCESS = 'ADMIN_ANNOUNCEMENT_DELETE_REQUEST';
+const ADMIN_ANNOUNCEMENT_DELETE_FAIL    = 'ADMIN_ANNOUNCEMENT_DELETE_FAIL';
+
+const ADMIN_ANNOUNCEMENT_MODAL_INIT = 'ADMIN_ANNOUNCEMENT_MODAL_INIT';
+
+const messages = defineMessages({
+  announcementCreateSuccess: { id: 'admin.edit_announcement.created', defaultMessage: 'Announcement created' },
+  announcementDeleteSuccess: { id: 'admin.edit_announcement.deleted', defaultMessage: 'Announcement deleted' },
+  announcementUpdateSuccess: { id: 'admin.edit_announcement.updated', defaultMessage: 'Announcement edited' },
+});
+
 const nicknamesFromIds = (getState: () => RootState, ids: string[]) => ids.map(id => getState().accounts.get(id)!.acct);
 
 const fetchConfig = () =>
@@ -598,6 +632,93 @@ const expandUserIndex = () =>
       });
   };
 
+const fetchAdminAnnouncements = () =>
+  (dispatch: AppDispatch, getState: () => RootState) => {
+    dispatch({ type: ADMIN_ANNOUNCEMENTS_FETCH_REQUEST });
+    return api(getState)
+      .get('/api/pleroma/admin/announcements', { params: { limit: 50 } })
+      .then(({ data }) => {
+        dispatch({ type: ADMIN_ANNOUNCEMENTS_FETCH_SUCCESS, announcements: data });
+        return data;
+      }).catch(error => {
+        dispatch({ type: ADMIN_ANNOUNCEMENTS_FETCH_FAIL, error });
+      });
+  };
+
+const expandAdminAnnouncements = () =>
+  (dispatch: AppDispatch, getState: () => RootState) => {
+    const page = getState().admin_announcements.page;
+
+    dispatch({ type: ADMIN_ANNOUNCEMENTS_EXPAND_REQUEST });
+    return api(getState)
+      .get('/api/pleroma/admin/announcements', { params: { limit: 50, offset: page * 50 } })
+      .then(({ data }) => {
+        dispatch({ type: ADMIN_ANNOUNCEMENTS_EXPAND_SUCCESS, announcements: data });
+        return data;
+      }).catch(error => {
+        dispatch({ type: ADMIN_ANNOUNCEMENTS_EXPAND_FAIL, error });
+      });
+  };
+
+const changeAnnouncementContent = (content: string) => ({
+  type: ADMIN_ANNOUNCEMENT_CHANGE_CONTENT,
+  value: content,
+});
+
+const changeAnnouncementStartTime = (time: Date | null) => ({
+  type: ADMIN_ANNOUNCEMENT_CHANGE_START_TIME,
+  value: time,
+});
+
+const changeAnnouncementEndTime = (time: Date | null) => ({
+  type: ADMIN_ANNOUNCEMENT_CHANGE_END_TIME,
+  value: time,
+});
+
+const changeAnnouncementAllDay = (allDay: boolean) => ({
+  type: ADMIN_ANNOUNCEMENT_CHANGE_ALL_DAY,
+  value: allDay,
+});
+
+const handleCreateAnnouncement = () =>
+  (dispatch: AppDispatch, getState: () => RootState) => {
+    dispatch({ type: ADMIN_ANNOUNCEMENT_CREATE_REQUEST });
+
+    const { id, content, starts_at, ends_at, all_day } = getState().admin_announcements.form;
+
+    return api(getState)[id ? 'patch' : 'post'](
+      id ? `/api/pleroma/admin/announcements/${id}` : '/api/pleroma/admin/announcements',
+      { content, starts_at, ends_at, all_day },
+    ).then(({ data }) => {
+      dispatch({ type: ADMIN_ANNOUNCEMENT_CREATE_SUCCESS, announcement: data });
+      toast.success(id ? messages.announcementUpdateSuccess : messages.announcementCreateSuccess);
+      dispatch(fetchAdminAnnouncements());
+      return data;
+    }).catch(error => {
+      dispatch({ type: ADMIN_ANNOUNCEMENT_CREATE_FAIL, error });
+    });
+  };
+
+const deleteAnnouncement = (id: string) =>
+  (dispatch: AppDispatch, getState: () => RootState) => {
+    dispatch({ type: ADMIN_ANNOUNCEMENT_DELETE_REQUEST, id });
+
+    return api(getState).delete(`/api/pleroma/admin/announcements/${id}`).then(({ data }) => {
+      dispatch({ type: ADMIN_ANNOUNCEMENT_DELETE_SUCCESS, id });
+      toast.success(messages.announcementDeleteSuccess);
+      dispatch(fetchAdminAnnouncements());
+      return data;
+    }).catch(error => {
+      dispatch({ type: ADMIN_ANNOUNCEMENT_DELETE_FAIL, id, error });
+    });
+  };
+
+const initAnnouncementModal = (announcement?: Announcement) =>
+  (dispatch: AppDispatch) => {
+    dispatch({ type: ADMIN_ANNOUNCEMENT_MODAL_INIT, announcement });
+    dispatch(openModal('EDIT_ANNOUNCEMENT'));
+  };
+
 export {
   ADMIN_CONFIG_FETCH_REQUEST,
   ADMIN_CONFIG_FETCH_SUCCESS,
@@ -657,6 +778,23 @@ export {
   ADMIN_USER_INDEX_FETCH_REQUEST,
   ADMIN_USER_INDEX_FETCH_SUCCESS,
   ADMIN_USER_INDEX_QUERY_SET,
+  ADMIN_ANNOUNCEMENTS_FETCH_FAIL,
+  ADMIN_ANNOUNCEMENTS_FETCH_REQUEST,
+  ADMIN_ANNOUNCEMENTS_FETCH_SUCCESS,
+  ADMIN_ANNOUNCEMENTS_EXPAND_FAIL,
+  ADMIN_ANNOUNCEMENTS_EXPAND_REQUEST,
+  ADMIN_ANNOUNCEMENTS_EXPAND_SUCCESS,
+  ADMIN_ANNOUNCEMENT_CHANGE_CONTENT,
+  ADMIN_ANNOUNCEMENT_CHANGE_START_TIME,
+  ADMIN_ANNOUNCEMENT_CHANGE_END_TIME,
+  ADMIN_ANNOUNCEMENT_CHANGE_ALL_DAY,
+  ADMIN_ANNOUNCEMENT_CREATE_FAIL,
+  ADMIN_ANNOUNCEMENT_CREATE_REQUEST,
+  ADMIN_ANNOUNCEMENT_CREATE_SUCCESS,
+  ADMIN_ANNOUNCEMENT_DELETE_FAIL,
+  ADMIN_ANNOUNCEMENT_DELETE_REQUEST,
+  ADMIN_ANNOUNCEMENT_DELETE_SUCCESS,
+  ADMIN_ANNOUNCEMENT_MODAL_INIT,
   fetchConfig,
   updateConfig,
   updateSoapboxConfig,
@@ -686,4 +824,13 @@ export {
   setUserIndexQuery,
   fetchUserIndex,
   expandUserIndex,
+  fetchAdminAnnouncements,
+  expandAdminAnnouncements,
+  changeAnnouncementContent,
+  changeAnnouncementStartTime,
+  changeAnnouncementEndTime,
+  changeAnnouncementAllDay,
+  handleCreateAnnouncement,
+  deleteAnnouncement,
+  initAnnouncementModal,
 };
diff --git a/app/soapbox/features/admin/announcements.tsx b/app/soapbox/features/admin/announcements.tsx
new file mode 100644
index 000000000..c4ab66571
--- /dev/null
+++ b/app/soapbox/features/admin/announcements.tsx
@@ -0,0 +1,128 @@
+import React, { useEffect } from 'react';
+import { FormattedDate, FormattedMessage, defineMessages, useIntl } from 'react-intl';
+
+import { deleteAnnouncement, fetchAdminAnnouncements, initAnnouncementModal } from 'soapbox/actions/admin';
+import { openModal } from 'soapbox/actions/modals';
+import ScrollableList from 'soapbox/components/scrollable-list';
+import { Button, Column, HStack, Stack, Text } from 'soapbox/components/ui';
+import { useAppDispatch, useAppSelector } from 'soapbox/hooks';
+import { Announcement as AnnouncementEntity } from 'soapbox/types/entities';
+
+const messages = defineMessages({
+  heading: { id: 'column.admin.announcements', defaultMessage: 'Announcements' },
+  deleteConfirm: { id: 'confirmations.admin.delete_announcement.confirm', defaultMessage: 'Delete' },
+  deleteHeading: { id: 'confirmations.admin.delete_announcement.heading', defaultMessage: 'Delete announcement' },
+  deleteMessage: { id: 'confirmations.admin.delete_announcement.message', defaultMessage: 'Are you sure you want to delete the announcement?' },
+});
+
+interface IAnnouncement {
+  announcement: AnnouncementEntity
+}
+
+const Announcement: React.FC<IAnnouncement> = ({ announcement }) => {
+  const intl = useIntl();
+  const dispatch = useAppDispatch();
+
+  const handleEditAnnouncement = (announcement: AnnouncementEntity) => () => {
+    dispatch(initAnnouncementModal(announcement));
+  };
+
+  const handleDeleteAnnouncement = (id: string) => () => {
+    dispatch(openModal('CONFIRM', {
+      heading: intl.formatMessage(messages.deleteHeading),
+      message: intl.formatMessage(messages.deleteMessage),
+      confirm: intl.formatMessage(messages.deleteConfirm),
+      onConfirm: () => dispatch(deleteAnnouncement(id)),
+    }));
+  };
+
+  return (
+    <div key={announcement.id} className='rounded-lg bg-gray-100 p-4 dark:bg-primary-800'>
+      <Stack space={2}>
+        <Text dangerouslySetInnerHTML={{ __html: announcement.contentHtml }} />
+        {(announcement.starts_at || announcement.ends_at || announcement.all_day) && (
+          <HStack space={2} wrap>
+            {announcement.starts_at && (
+              <Text size='sm'>
+                <Text tag='span' size='sm' weight='medium'>
+                  <FormattedMessage id='admin.announcements.starts_at' defaultMessage='Starts at:' />
+                </Text>
+                {' '}
+                <FormattedDate value={announcement.starts_at} year='2-digit' month='short' day='2-digit' weekday='short' />
+              </Text>
+            )}
+            {announcement.ends_at && (
+              <Text size='sm'>
+                <Text tag='span' size='sm' weight='medium'>
+                  <FormattedMessage id='admin.announcements.ends_at' defaultMessage='Ends at:' />
+                </Text>
+                {' '}
+                <FormattedDate value={announcement.ends_at} year='2-digit' month='short' day='2-digit' weekday='short' />
+              </Text>
+            )}
+            {announcement.all_day && (
+              <Text weight='medium' size='sm'>
+                <FormattedMessage id='admin.announcements.all_day' defaultMessage='All day' />
+              </Text>
+            )}
+          </HStack>
+        )}
+        <HStack justifyContent='end' space={2}>
+          <Button theme='primary' onClick={handleEditAnnouncement(announcement)}>
+            <FormattedMessage id='admin.announcements.edit' defaultMessage='Edit' />
+          </Button>
+          <Button theme='primary' onClick={handleDeleteAnnouncement(announcement.id)}>
+            <FormattedMessage id='admin.announcements.delete' defaultMessage='Delete' />
+          </Button>
+        </HStack>
+      </Stack>
+    </div>
+  );
+};
+
+const Announcements: React.FC = () => {
+  const intl = useIntl();
+  const dispatch = useAppDispatch();
+
+  const announcements = useAppSelector((state) => state.admin_announcements.items);
+  const isLoading = useAppSelector((state) => state.admin_announcements.isLoading);
+
+  useEffect(() => {
+    dispatch(fetchAdminAnnouncements());
+  }, []);
+
+  const handleCreateAnnouncement = () => {
+    dispatch(initAnnouncementModal());
+  };
+
+  const emptyMessage = <FormattedMessage id='empty_column.admin.announcements' defaultMessage='There are no announcements yet.' />;
+
+  return (
+    <Column label={intl.formatMessage(messages.heading)}>
+      <Stack className='gap-4'>
+        <Button
+          className='sm:w-fit sm:self-end'
+          icon={require('@tabler/icons/plus.svg')}
+          onClick={handleCreateAnnouncement}
+          theme='secondary'
+          block
+        >
+          <FormattedMessage id='admin.announcements.action' defaultMessage='Create announcement' />
+        </Button>
+        <ScrollableList
+          scrollKey='announcements'
+          emptyMessage={emptyMessage}
+          itemClassName='py-3 first:pt-0 last:pb-0'
+          isLoading={isLoading}
+          showLoading={isLoading && !announcements.count()}
+        >
+          {announcements.map((announcement) => (
+            <Announcement key={announcement.id} announcement={announcement} />
+          ))}
+        </ScrollableList>
+      </Stack>
+    </Column>
+  );
+};
+
+export default Announcements;
diff --git a/app/soapbox/features/admin/tabs/dashboard.tsx b/app/soapbox/features/admin/tabs/dashboard.tsx
index 035feb3c8..f57740dfe 100644
--- a/app/soapbox/features/admin/tabs/dashboard.tsx
+++ b/app/soapbox/features/admin/tabs/dashboard.tsx
@@ -43,6 +43,7 @@ const Dashboard: React.FC = () => {
 
   const navigateToSoapboxConfig = () => history.push('/soapbox/config');
   const navigateToModerationLog = () => history.push('/soapbox/admin/log');
+  const navigateToAnnouncements = () => history.push('/soapbox/admin/announcements');
 
   const v = parseVersion(instance.version);
 
@@ -95,6 +96,13 @@ const Dashboard: React.FC = () => {
           onClick={navigateToModerationLog}
           label={<FormattedMessage id='column.admin.moderation_log' defaultMessage='Moderation Log' />}
         />
+
+        {features.announcements && (
+          <ListItem
+            onClick={navigateToAnnouncements}
+            label={<FormattedMessage id='column.admin.announcements' defaultMessage='Announcements' />}
+          />
+        )}
       </List>
 
       {account.admin && (
diff --git a/app/soapbox/features/chats/components/chat-textarea.tsx b/app/soapbox/features/chats/components/chat-textarea.tsx
index 3304bc40a..2b491ed69 100644
--- a/app/soapbox/features/chats/components/chat-textarea.tsx
+++ b/app/soapbox/features/chats/components/chat-textarea.tsx
@@ -67,4 +67,4 @@ const ChatTextarea: React.FC<IChatTextarea> = ({
   );
 };
 
-export default ChatTextarea;
\ No newline at end of file
+export default ChatTextarea;
diff --git a/app/soapbox/features/ui/components/modal-root.tsx b/app/soapbox/features/ui/components/modal-root.tsx
index f787af840..dc4801c29 100644
--- a/app/soapbox/features/ui/components/modal-root.tsx
+++ b/app/soapbox/features/ui/components/modal-root.tsx
@@ -2,41 +2,42 @@ import React from 'react';
 
 import Base from 'soapbox/components/modal-root';
 import {
-  MediaModal,
-  VideoModal,
-  BoostModal,
-  ConfirmationModal,
-  MuteModal,
-  ReportModal,
-  EmbedModal,
-  CryptoDonateModal,
-  ListEditor,
-  ListAdder,
-  MissingDescriptionModal,
-  ActionsModal,
-  HotkeysModal,
-  ComposeModal,
-  ReplyMentionsModal,
-  UnauthorizedModal,
-  EditFederationModal,
-  ComponentModal,
-  ReactionsModal,
-  FavouritesModal,
-  ReblogsModal,
-  MentionsModal,
-  LandingPageModal,
-  BirthdaysModal,
-  AccountNoteModal,
-  CompareHistoryModal,
-  VerifySmsModal,
-  FamiliarFollowersModal,
-  ComposeEventModal,
-  JoinEventModal,
   AccountModerationModal,
+  AccountNoteModal,
+  ActionsModal,
+  BirthdaysModal,
+  BoostModal,
+  CompareHistoryModal,
+  ComponentModal,
+  ComposeEventModal,
+  ComposeModal,
+  ConfirmationModal,
+  CryptoDonateModal,
+  EditAnnouncementModal,
+  EditFederationModal,
+  EmbedModal,
   EventMapModal,
   EventParticipantsModal,
-  PolicyModal,
+  FamiliarFollowersModal,
+  FavouritesModal,
+  HotkeysModal,
+  JoinEventModal,
+  LandingPageModal,
+  ListAdder,
+  ListEditor,
   ManageGroupModal,
+  MediaModal,
+  MentionsModal,
+  MissingDescriptionModal,
+  MuteModal,
+  PolicyModal,
+  ReactionsModal,
+  ReblogsModal,
+  ReplyMentionsModal,
+  ReportModal,
+  UnauthorizedModal,
+  VerifySmsModal,
+  VideoModal,
 } from 'soapbox/features/ui/util/async-components';
 
 import BundleContainer from '../containers/bundle-container';
@@ -45,42 +46,44 @@ import { BundleProps } from './bundle';
 import BundleModalError from './bundle-modal-error';
 import ModalLoading from './modal-loading';
 
+/* eslint sort-keys: "error" */
 const MODAL_COMPONENTS = {
-  'MEDIA': MediaModal,
-  'VIDEO': VideoModal,
-  'BOOST': BoostModal,
-  'CONFIRM': ConfirmationModal,
-  'MISSING_DESCRIPTION': MissingDescriptionModal,
-  'MUTE': MuteModal,
-  'REPORT': ReportModal,
-  'ACTIONS': ActionsModal,
-  'EMBED': EmbedModal,
-  'LIST_EDITOR': ListEditor,
-  'LIST_ADDER': ListAdder,
-  'HOTKEYS': HotkeysModal,
-  'COMPOSE': ComposeModal,
-  'REPLY_MENTIONS': ReplyMentionsModal,
-  'UNAUTHORIZED': UnauthorizedModal,
-  'CRYPTO_DONATE': CryptoDonateModal,
-  'EDIT_FEDERATION': EditFederationModal,
-  'COMPONENT': ComponentModal,
-  'REBLOGS': ReblogsModal,
-  'FAVOURITES': FavouritesModal,
-  'REACTIONS': ReactionsModal,
-  'MENTIONS': MentionsModal,
-  'LANDING_PAGE': LandingPageModal,
-  'BIRTHDAYS': BirthdaysModal,
-  'ACCOUNT_NOTE': AccountNoteModal,
-  'COMPARE_HISTORY': CompareHistoryModal,
-  'VERIFY_SMS': VerifySmsModal,
-  'FAMILIAR_FOLLOWERS': FamiliarFollowersModal,
-  'COMPOSE_EVENT': ComposeEventModal,
-  'JOIN_EVENT': JoinEventModal,
   'ACCOUNT_MODERATION': AccountModerationModal,
+  'ACCOUNT_NOTE': AccountNoteModal,
+  'ACTIONS': ActionsModal,
+  'BIRTHDAYS': BirthdaysModal,
+  'BOOST': BoostModal,
+  'COMPARE_HISTORY': CompareHistoryModal,
+  'COMPONENT': ComponentModal,
+  'COMPOSE': ComposeModal,
+  'COMPOSE_EVENT': ComposeEventModal,
+  'CONFIRM': ConfirmationModal,
+  'CRYPTO_DONATE': CryptoDonateModal,
+  'EDIT_ANNOUNCEMENT': EditAnnouncementModal,
+  'EDIT_FEDERATION': EditFederationModal,
+  'EMBED': EmbedModal,
   'EVENT_MAP': EventMapModal,
   'EVENT_PARTICIPANTS': EventParticipantsModal,
-  'POLICY': PolicyModal,
+  'FAMILIAR_FOLLOWERS': FamiliarFollowersModal,
+  'FAVOURITES': FavouritesModal,
+  'HOTKEYS': HotkeysModal,
+  'JOIN_EVENT': JoinEventModal,
+  'LANDING_PAGE': LandingPageModal,
+  'LIST_ADDER': ListAdder,
+  'LIST_EDITOR': ListEditor,
   'MANAGE_GROUP': ManageGroupModal,
+  'MEDIA': MediaModal,
+  'MENTIONS': MentionsModal,
+  'MISSING_DESCRIPTION': MissingDescriptionModal,
+  'MUTE': MuteModal,
+  'POLICY': PolicyModal,
+  'REACTIONS': ReactionsModal,
+  'REBLOGS': ReblogsModal,
+  'REPLY_MENTIONS': ReplyMentionsModal,
+  'REPORT': ReportModal,
+  'UNAUTHORIZED': UnauthorizedModal,
+  'VERIFY_SMS': VerifySmsModal,
+  'VIDEO': VideoModal,
 };
 
 export type ModalType = keyof typeof MODAL_COMPONENTS | null;
diff --git a/app/soapbox/features/ui/components/modals/edit-announcement-modal.tsx b/app/soapbox/features/ui/components/modals/edit-announcement-modal.tsx
new file mode 100644
index 000000000..ad1fcb647
--- /dev/null
+++ b/app/soapbox/features/ui/components/modals/edit-announcement-modal.tsx
@@ -0,0 +1,119 @@
+import React from 'react';
+import { FormattedMessage, defineMessages, useIntl } from 'react-intl';
+
+import { changeAnnouncementAllDay, changeAnnouncementContent, changeAnnouncementEndTime, changeAnnouncementStartTime, handleCreateAnnouncement } from 'soapbox/actions/admin';
+import { closeModal } from 'soapbox/actions/modals';
+import { Form, FormGroup, HStack, Modal, Stack, Text, Textarea, Toggle } from 'soapbox/components/ui';
+import BundleContainer from 'soapbox/features/ui/containers/bundle-container';
+import { DatePicker } from 'soapbox/features/ui/util/async-components';
+import { useAppDispatch, useAppSelector } from 'soapbox/hooks';
+
+const messages = defineMessages({
+  save: { id: 'admin.edit_announcement.save', defaultMessage: 'Save' },
+  announcementContentPlaceholder: { id: 'admin.edit_announcement.fields.content_placeholder', defaultMessage: 'Announcement content' },
+  announcementStartTimePlaceholder: { id: 'admin.edit_announcement.fields.start_time_placeholder', defaultMessage: 'Announcement starts on…' },
+  announcementEndTimePlaceholder: { id: 'admin.edit_announcement.fields.end_time_placeholder', defaultMessage: 'Announcement ends on…' },
+});
+
+interface IEditAnnouncementModal {
+  onClose: (type?: string) => void,
+}
+
+const EditAnnouncementModal: React.FC<IEditAnnouncementModal> = ({ onClose }) => {
+  const dispatch = useAppDispatch();
+  const intl = useIntl();
+
+  const id = useAppSelector((state) => state.admin_announcements.form.id);
+  const content = useAppSelector((state) => state.admin_announcements.form.content);
+  const startTime = useAppSelector((state) => state.admin_announcements.form.starts_at);
+  const endTime = useAppSelector((state) => state.admin_announcements.form.ends_at);
+  const allDay = useAppSelector((state) => state.admin_announcements.form.all_day);
+
+  const onChangeContent: React.ChangeEventHandler<HTMLTextAreaElement> = ({ target }) =>
+    dispatch(changeAnnouncementContent(target.value));
+
+  const onChangeStartTime = (date: Date | null) => dispatch(changeAnnouncementStartTime(date));
+
+  const onChangeEndTime = (date: Date | null) => dispatch(changeAnnouncementEndTime(date));
+
+  const onChangeAllDay: React.ChangeEventHandler<HTMLInputElement> = ({ target }) => dispatch(changeAnnouncementAllDay(target.checked));
+
+  const onClickClose = () => {
+    onClose('EDIT_ANNOUNCEMENT');
+  };
+
+  const handleSubmit = () => dispatch(handleCreateAnnouncement()).then(() => dispatch(closeModal('EDIT_ANNOUNCEMENT')));
+
+  return (
+    <Modal
+      onClose={onClickClose}
+      title={id
+        ? <FormattedMessage id='column.admin.edit_announcement' defaultMessage='Edit announcement' />
+        : <FormattedMessage id='column.admin.create_announcement' defaultMessage='Create announcement' />}
+      confirmationAction={handleSubmit}
+      confirmationText={intl.formatMessage(messages.save)}
+    >
+      <Form>
+        <FormGroup
+          labelText={<FormattedMessage id='admin.edit_announcement.fields.content_label' defaultMessage='Content' />}
+        >
+          <Textarea
+            autoComplete='off'
+            placeholder={intl.formatMessage(messages.announcementContentPlaceholder)}
+            value={content}
+            onChange={onChangeContent}
+          />
+        </FormGroup>
+        <FormGroup
+          labelText={<FormattedMessage id='admin.edit_announcement.fields.start_time_label' defaultMessage='Start date' />}
+        >
+          <BundleContainer fetchComponent={DatePicker}>
+            {Component => (<Component
+              showTimeSelect
+              dateFormat='MMMM d, yyyy h:mm aa'
+              timeIntervals={15}
+              wrapperClassName='react-datepicker-wrapper'
+              placeholderText={intl.formatMessage(messages.announcementStartTimePlaceholder)}
+              selected={startTime}
+              onChange={onChangeStartTime}
+              isClearable
+            />)}
+          </BundleContainer>
+        </FormGroup>
+        <FormGroup
+          labelText={<FormattedMessage id='admin.edit_announcement.fields.end_time_label' defaultMessage='End date' />}
+        >
+          <BundleContainer fetchComponent={DatePicker}>
+            {Component => (<Component
+              showTimeSelect
+              dateFormat='MMMM d, yyyy h:mm aa'
+              timeIntervals={15}
+              wrapperClassName='react-datepicker-wrapper'
+              placeholderText={intl.formatMessage(messages.announcementEndTimePlaceholder)}
+              selected={endTime}
+              onChange={onChangeEndTime}
+              isClearable
+            />)}
+          </BundleContainer>
+        </FormGroup>
+        <HStack  alignItems='center' space={2}>
+          <Toggle
+            icons={false}
+            checked={allDay}
+            onChange={onChangeAllDay}
+          />
+          <Stack>
+            <Text tag='span' theme='muted'>
+              <FormattedMessage id='admin.edit_announcement.fields.all_day_label' defaultMessage='All-day event' />
+            </Text>
+            <Text size='xs' tag='span' theme='muted'>
+              <FormattedMessage id='admin.edit_announcement.fields.all_day_hint' defaultMessage='When checked, only the dates of the time range will be displayed' />
+            </Text>
+          </Stack>
+        </HStack>
+      </Form>
+    </Modal>
+  );
+};
+
+export default EditAnnouncementModal;
diff --git a/app/soapbox/features/ui/components/modals/manage-group-modal/manage-group-modal.tsx b/app/soapbox/features/ui/components/modals/manage-group-modal/manage-group-modal.tsx
index 55306755f..0d47534c5 100644
--- a/app/soapbox/features/ui/components/modals/manage-group-modal/manage-group-modal.tsx
+++ b/app/soapbox/features/ui/components/modals/manage-group-modal/manage-group-modal.tsx
@@ -39,7 +39,7 @@ const ManageGroupModal: React.FC<IManageGroupModal> = ({ onClose }) => {
   const [currentStep, setCurrentStep] = useState<Steps>(id ? Steps.TWO : Steps.ONE);
 
   const onClickClose = () => {
-    onClose('manage_group');
+    onClose('MANAGE_GROUP');
   };
 
   const handleSubmit = () => {
diff --git a/app/soapbox/features/ui/index.tsx b/app/soapbox/features/ui/index.tsx
index 6099dc267..3a69b82a7 100644
--- a/app/soapbox/features/ui/index.tsx
+++ b/app/soapbox/features/ui/index.tsx
@@ -120,6 +120,7 @@ import {
   ManageGroup,
   GroupBlockedMembers,
   GroupMembershipRequests,
+  Announcements,
 } from './util/async-components';
 import { WrappedRoute } from './util/react-router-helpers';
 
@@ -311,6 +312,7 @@ const SwitchingColumnsArea: React.FC<ISwitchingColumnsArea> = ({ children }) =>
       <WrappedRoute path='/soapbox/admin/log' staffOnly page={AdminPage} component={ModerationLog} content={children} exact />
       <WrappedRoute path='/soapbox/admin/users' staffOnly page={AdminPage} component={UserIndex} content={children} exact />
       <WrappedRoute path='/soapbox/admin/theme' staffOnly page={AdminPage} component={ThemeEditor} content={children} exact />
+      <WrappedRoute path='/soapbox/admin/announcements' staffOnly page={AdminPage} component={Announcements} content={children} exact />
       <WrappedRoute path='/info' page={EmptyPage} component={ServerInfo} content={children} />
 
       <WrappedRoute path='/developers/apps/create' developerOnly page={DefaultPage} component={CreateApp} content={children} />
diff --git a/app/soapbox/features/ui/util/async-components.ts b/app/soapbox/features/ui/util/async-components.ts
index 945329cd4..6e18f5771 100644
--- a/app/soapbox/features/ui/util/async-components.ts
+++ b/app/soapbox/features/ui/util/async-components.ts
@@ -577,3 +577,11 @@ export function GroupMediaPanel() {
 export function NewEventPanel() {
   return import(/* webpackChunkName: "features/events" */'../components/panels/new-event-panel');
 }
+
+export function Announcements() {
+  return import(/* webpackChunkName: "features/admin/announcements" */'../../admin/announcements');
+}
+
+export function EditAnnouncementModal() {
+  return import(/* webpackChunkName: "features/admin/announcements" */'../components/modals/edit-announcement-modal');
+}
diff --git a/app/soapbox/locales/en.json b/app/soapbox/locales/en.json
index 6441c7047..dc55b1f83 100644
--- a/app/soapbox/locales/en.json
+++ b/app/soapbox/locales/en.json
@@ -85,6 +85,12 @@
   "account_search.placeholder": "Search for an account",
   "actualStatus.edited": "Edited {date}",
   "actualStatuses.quote_tombstone": "Post is unavailable.",
+  "admin.announcements.action": "Create announcement",
+  "admin.announcements.all_day": "All day",
+  "admin.announcements.delete": "Delete",
+  "admin.announcements.edit": "Edit",
+  "admin.announcements.ends_at": "Ends at:",
+  "admin.announcements.starts_at": "Starts at:",
   "admin.awaiting_approval.approved_message": "{acct} was approved!",
   "admin.awaiting_approval.empty_message": "There is nobody waiting for approval. When a new user signs up, you can review them here.",
   "admin.awaiting_approval.rejected_message": "{acct} was rejected.",
@@ -103,6 +109,18 @@
   "admin.dashcounters.user_count_label": "total users",
   "admin.dashwidgets.email_list_header": "Email list",
   "admin.dashwidgets.software_header": "Software",
+  "admin.edit_announcement.created": "Announcement created",
+  "admin.edit_announcement.deleted": "Announcement deleted",
+  "admin.edit_announcement.fields.all_day_hint": "When checked, only the dates of the time range will be displayed",
+  "admin.edit_announcement.fields.all_day_label": "All-day event",
+  "admin.edit_announcement.fields.content_label": "Content",
+  "admin.edit_announcement.fields.content_placeholder": "Announcement content",
+  "admin.edit_announcement.fields.end_time_label": "End date",
+  "admin.edit_announcement.fields.end_time_placeholder": "Announcement ends on:",
+  "admin.edit_announcement.fields.start_time_label": "Start date",
+  "admin.edit_announcement.fields.start_time_placeholder": "Announcement starts on:",
+  "admin.edit_announcement.save": "Save",
+  "admin.edit_announcement.updated": "Announcement edited",
   "admin.latest_accounts_panel.more": "Click to see {count, plural, one {# account} other {# accounts}}",
   "admin.latest_accounts_panel.title": "Latest Accounts",
   "admin.moderation_log.empty_message": "You have not performed any moderation actions yet. When you do, a history will be shown here.",
@@ -265,8 +283,11 @@
   "chats.main.blankslate_with_chats.subtitle": "Select from one of your open chats or create a new message.",
   "chats.main.blankslate_with_chats.title": "Select a chat",
   "chats.search_placeholder": "Start a chat with…",
+  "column.admin.announcements": "Announcements",
   "column.admin.awaiting_approval": "Awaiting Approval",
+  "column.admin.create_announcement": "Create announcement",
   "column.admin.dashboard": "Dashboard",
+  "column.admin.edit_announcement": "Edit announcement",
   "column.admin.moderation_log": "Moderation Log",
   "column.admin.reports": "Reports",
   "column.admin.reports.menu.moderation_log": "Moderation Log",
@@ -416,6 +437,9 @@
   "confirmations.admin.deactivate_user.confirm": "Deactivate @{name}",
   "confirmations.admin.deactivate_user.heading": "Deactivate @{acct}",
   "confirmations.admin.deactivate_user.message": "You are about to deactivate @{acct}. Deactivating a user is a reversible action.",
+  "confirmations.admin.delete_announcement.confirm": "Delete",
+  "confirmations.admin.delete_announcement.heading": "Delete announcement",
+  "confirmations.admin.delete_announcement.message": "Are you sure you want to delete the announcement?",
   "confirmations.admin.delete_local_user.checkbox": "I understand that I am about to delete a local user.",
   "confirmations.admin.delete_status.confirm": "Delete post",
   "confirmations.admin.delete_status.heading": "Delete post",
@@ -613,6 +637,7 @@
   "empty_column.account_favourited_statuses": "This user doesn't have any liked posts yet.",
   "empty_column.account_timeline": "No posts here!",
   "empty_column.account_unavailable": "Profile unavailable",
+  "empty_column.admin.announcements": "There are no announcements yet.",
   "empty_column.aliases": "You haven't created any account alias yet.",
   "empty_column.aliases.suggestions": "There are no account suggestions available for the provided term.",
   "empty_column.blocks": "You haven't blocked any users yet.",
diff --git a/app/soapbox/normalizers/announcement.ts b/app/soapbox/normalizers/announcement.ts
index b7573091c..4d665c15f 100644
--- a/app/soapbox/normalizers/announcement.ts
+++ b/app/soapbox/normalizers/announcement.ts
@@ -35,6 +35,8 @@ export const AnnouncementRecord = ImmutableRecord({
   emojis: ImmutableList<Emoji>(),
   updated_at: Date,
 
+  pleroma: ImmutableMap<string, any>(),
+
   // Internal fields
   contentHtml: '',
 });
diff --git a/app/soapbox/reducers/admin-announcements.ts b/app/soapbox/reducers/admin-announcements.ts
new file mode 100644
index 000000000..33926effc
--- /dev/null
+++ b/app/soapbox/reducers/admin-announcements.ts
@@ -0,0 +1,85 @@
+import { List as ImmutableList, Record as ImmutableRecord } from 'immutable';
+
+import {
+  ADMIN_ANNOUNCEMENT_CHANGE_ALL_DAY,
+  ADMIN_ANNOUNCEMENT_CHANGE_CONTENT,
+  ADMIN_ANNOUNCEMENT_CHANGE_END_TIME,
+  ADMIN_ANNOUNCEMENT_CHANGE_START_TIME,
+  ADMIN_ANNOUNCEMENT_CREATE_FAIL,
+  ADMIN_ANNOUNCEMENT_CREATE_REQUEST,
+  ADMIN_ANNOUNCEMENT_CREATE_SUCCESS,
+  ADMIN_ANNOUNCEMENT_DELETE_SUCCESS,
+  ADMIN_ANNOUNCEMENT_MODAL_INIT,
+  ADMIN_ANNOUNCEMENTS_FETCH_FAIL,
+  ADMIN_ANNOUNCEMENTS_FETCH_REQUEST,
+  ADMIN_ANNOUNCEMENTS_FETCH_SUCCESS,
+} from 'soapbox/actions/admin';
+import { normalizeAnnouncement } from 'soapbox/normalizers';
+
+import type { AnyAction } from 'redux';
+import type { Announcement, APIEntity } from 'soapbox/types/entities';
+
+const AnnouncementFormRecord = ImmutableRecord({
+  id: null as string | null,
+  content: '',
+  starts_at: null as Date | null,
+  ends_at: null as Date | null,
+  all_day: false,
+  is_submitting: false,
+});
+
+const ReducerRecord = ImmutableRecord({
+  items: ImmutableList<Announcement>(),
+  isLoading: false,
+  page: -1,
+  form: AnnouncementFormRecord(),
+});
+
+export default function adminAnnouncementsReducer(state = ReducerRecord(), action: AnyAction) {
+  switch (action.type) {
+    case ADMIN_ANNOUNCEMENTS_FETCH_REQUEST:
+      return state.set('isLoading', true);
+    case ADMIN_ANNOUNCEMENTS_FETCH_SUCCESS:
+      return state.withMutations(map => {
+        const items = ImmutableList<Announcement>((action.announcements).map((announcement: APIEntity) => normalizeAnnouncement(announcement)));
+
+        map.set('items', items);
+        map.set('isLoading', false);
+      });
+    case ADMIN_ANNOUNCEMENTS_FETCH_FAIL:
+      return state.set('isLoading', false);
+    case ADMIN_ANNOUNCEMENT_DELETE_SUCCESS:
+      return state.update('items', list => {
+        const idx = list.findIndex(x => x.id === action.id);
+
+        if (idx > -1) {
+          return list.delete(idx);
+        }
+
+        return list;
+      });
+    case ADMIN_ANNOUNCEMENT_CHANGE_CONTENT:
+      return state.setIn(['form', 'content'], action.value);
+    case ADMIN_ANNOUNCEMENT_CHANGE_START_TIME:
+      return state.setIn(['form', 'starts_at'], action.value);
+    case ADMIN_ANNOUNCEMENT_CHANGE_END_TIME:
+      return state.setIn(['form', 'ends_at'], action.value);
+    case ADMIN_ANNOUNCEMENT_CHANGE_ALL_DAY:
+      return state.setIn(['form', 'all_day'], action.value);
+    case ADMIN_ANNOUNCEMENT_CREATE_REQUEST:
+      return state.setIn(['form', 'is_submitting'], true);
+    case ADMIN_ANNOUNCEMENT_CREATE_SUCCESS:
+    case ADMIN_ANNOUNCEMENT_CREATE_FAIL:
+      return state.setIn(['form', 'is_submitting'], true);
+    case ADMIN_ANNOUNCEMENT_MODAL_INIT:
+      return state.set('form', action.announcement ? AnnouncementFormRecord({
+        id: action.announcement.id,
+        content: action.announcement.content,
+        starts_at: action.announcement.starts_at ? new Date(action.announcement.starts_at) : null,
+        ends_at: action.announcement.ends_at ? new Date(action.announcement.ends_at) : null,
+        all_day: action.announcement.all_day,
+      }) : AnnouncementFormRecord());
+    default:
+      return state;
+  }
+}
diff --git a/app/soapbox/reducers/index.ts b/app/soapbox/reducers/index.ts
index 83f03fd34..c3a12618b 100644
--- a/app/soapbox/reducers/index.ts
+++ b/app/soapbox/reducers/index.ts
@@ -9,6 +9,7 @@ import accounts from './accounts';
 import accounts_counters from './accounts-counters';
 import accounts_meta from './accounts-meta';
 import admin from './admin';
+import admin_announcements from './admin-announcements';
 import admin_log from './admin-log';
 import admin_user_index from './admin-user-index';
 import aliases from './aliases';
@@ -67,67 +68,68 @@ import user_lists from './user-lists';
 import verification from './verification';
 
 const reducers = {
-  dropdown_menu,
-  timelines,
-  meta,
-  modals,
-  user_lists,
-  domain_lists,
-  status_lists,
   account_notes,
   accounts,
   accounts_counters,
-  statuses,
-  relationships,
-  settings,
-  push_notifications,
-  mutes,
-  reports,
-  contexts,
-  compose,
-  search,
-  notifications,
-  custom_emojis,
-  lists,
-  listEditor,
-  listAdder,
-  locations,
-  filters,
-  conversations,
-  suggestions,
-  polls,
-  trends,
-  sidebar,
-  patron,
-  soapbox,
-  instance,
-  me,
-  auth,
-  admin,
-  chats,
-  chat_messages,
-  chat_message_lists,
-  profile_hover_card,
-  status_hover_card,
-  backups,
-  admin_log,
-  security,
-  scheduled_statuses,
-  pending_statuses,
-  aliases,
   accounts_meta,
-  trending_statuses,
-  verification,
-  onboarding,
-  rules,
-  history,
-  announcements,
-  compose_event,
+  admin,
+  admin_announcements,
+  admin_log,
   admin_user_index,
-  groups,
-  group_relationships,
-  group_memberships,
+  aliases,
+  announcements,
+  auth,
+  backups,
+  chat_message_lists,
+  chat_messages,
+  chats,
+  compose,
+  compose_event,
+  contexts,
+  conversations,
+  custom_emojis,
+  domain_lists,
+  dropdown_menu,
+  filters,
   group_editor,
+  group_memberships,
+  group_relationships,
+  groups,
+  history,
+  instance,
+  listAdder,
+  listEditor,
+  lists,
+  locations,
+  me,
+  meta,
+  modals,
+  mutes,
+  notifications,
+  onboarding,
+  patron,
+  pending_statuses,
+  polls,
+  profile_hover_card,
+  push_notifications,
+  relationships,
+  reports,
+  rules,
+  scheduled_statuses,
+  search,
+  security,
+  settings,
+  sidebar,
+  soapbox,
+  status_hover_card,
+  status_lists,
+  statuses,
+  suggestions,
+  timelines,
+  trending_statuses,
+  trends,
+  user_lists,
+  verification,
 };
 
 // Build a default state from all reducers: it has the key and `undefined`