diff --git a/changelog.d/13112.doc b/changelog.d/13112.doc
new file mode 100644
index 0000000000..4b99951c70
--- /dev/null
+++ b/changelog.d/13112.doc
@@ -0,0 +1 @@
+Remove documentation for the Delete Group Admin API which no longer exists.
\ No newline at end of file
diff --git a/docs/SUMMARY.md b/docs/SUMMARY.md
index d7cf2df112..b51c7a3cb4 100644
--- a/docs/SUMMARY.md
+++ b/docs/SUMMARY.md
@@ -55,7 +55,6 @@
     - [Admin API](usage/administration/admin_api/README.md)
       - [Account Validity](admin_api/account_validity.md)
       - [Background Updates](usage/administration/admin_api/background_updates.md)
-      - [Delete Group](admin_api/delete_group.md)
       - [Event Reports](admin_api/event_reports.md)
       - [Media](admin_api/media_admin_api.md)
       - [Purge History](admin_api/purge_history_api.md)
diff --git a/docs/admin_api/delete_group.md b/docs/admin_api/delete_group.md
deleted file mode 100644
index 73a96842ac..0000000000
--- a/docs/admin_api/delete_group.md
+++ /dev/null
@@ -1,14 +0,0 @@
-# Delete a local group
-
-This API lets a server admin delete a local group. Doing so will kick all
-users out of the group so that their clients will correctly handle the group
-being deleted.
-
-To use it, you will need to authenticate by providing an `access_token`
-for a server admin: see [Admin API](../usage/administration/admin_api).
-
-The API is:
-
-```
-POST /_synapse/admin/v1/delete_group/<group_id>
-```