diff --git a/models/organization/org.go b/models/organization/org.go
index 7dcb78cb9b..02794ba2cb 100644
--- a/models/organization/org.go
+++ b/models/organization/org.go
@@ -397,6 +397,14 @@ func DeleteOrganization(ctx context.Context, org *Organization) error {
 		return fmt.Errorf("%s is a user not an organization", org.Name)
 	}
 
+	// Decrease following count of users that follow the organisation.
+	followerIDs, err := db.FindIDs(ctx, "follow", "follow.user_id", builder.Eq{"follow.follow_id": org.ID})
+	if err != nil {
+		return fmt.Errorf("get all followers: %w", err)
+	} else if err = db.DecrByIDs(ctx, followerIDs, "num_following", new(user_model.User)); err != nil {
+		return fmt.Errorf("decrease user num_following: %w", err)
+	}
+
 	if err := db.DeleteBeans(ctx,
 		&Team{OrgID: org.ID},
 		&OrgUser{OrgID: org.ID},
@@ -406,6 +414,8 @@ func DeleteOrganization(ctx context.Context, org *Organization) error {
 		&secret_model.Secret{OwnerID: org.ID},
 		&actions_model.ActionRunner{OwnerID: org.ID},
 		&actions_model.ActionRunnerToken{OwnerID: optional.Some(org.ID)},
+		&user_model.BlockedUser{UserID: org.ID},
+		&user_model.Follow{FollowID: org.ID},
 	); err != nil {
 		return fmt.Errorf("DeleteBeans: %w", err)
 	}
diff --git a/release-notes/11699.md b/release-notes/11699.md
new file mode 100644
index 0000000000..8ecf708442
--- /dev/null
+++ b/release-notes/11699.md
@@ -0,0 +1 @@
+fix: The DB entries about users following an organization and users blocked by an organization were not deleted when an organization was deleted. Orphaned entries can be cleaned up by running `forgejo doctor check --run check-db-consistency --fix`.
diff --git a/services/org/TestDeleteOrganization/follow.yml b/services/org/TestDeleteOrganization/follow.yml
new file mode 100644
index 0000000000..7677806934
--- /dev/null
+++ b/services/org/TestDeleteOrganization/follow.yml
@@ -0,0 +1,4 @@
+-
+  id: 1001
+  user_id: 1001
+  follow_id: 6
diff --git a/services/org/TestDeleteOrganization/forgejo_blocked_user.yml b/services/org/TestDeleteOrganization/forgejo_blocked_user.yml
new file mode 100644
index 0000000000..f1281fb65d
--- /dev/null
+++ b/services/org/TestDeleteOrganization/forgejo_blocked_user.yml
@@ -0,0 +1,5 @@
+-
+  id: 1001
+  user_id: 6
+  block_id: 1
+  created_unix: 1772018142
diff --git a/services/org/TestDeleteOrganization/user.yml b/services/org/TestDeleteOrganization/user.yml
new file mode 100644
index 0000000000..cb1ac4138f
--- /dev/null
+++ b/services/org/TestDeleteOrganization/user.yml
@@ -0,0 +1,13 @@
+-
+  id: 1001
+  lower_name: user1001
+  name: user1001
+  full_name: User That loves Upper Cases
+  email: AnotherTestUserWithUpperCaseEmail@otto.splvs.net
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  avatar: ''
+  avatar_email: anothertestuserwithuppercaseemail@otto.splvs.net
+  login_name: user1
+  created_unix: 1772018142
+  num_following: 1
diff --git a/services/org/org_test.go b/services/org/org_test.go
index 38736286f4..fdb7f14008 100644
--- a/services/org/org_test.go
+++ b/services/org/org_test.go
@@ -32,6 +32,8 @@ func TestDeleteOrganization(t *testing.T) {
 	unittest.AssertNotExistsBean(t, &organization.OrgUser{OrgID: 6})
 	unittest.AssertNotExistsBean(t, &organization.Team{OrgID: 6})
 	unittest.AssertNotExistsBean(t, &actions.ActionRunnerToken{OwnerID: optional.Some[int64](6)})
+	unittest.AssertNotExistsBean(t, &user_model.Follow{FollowID: 6})
+	unittest.AssertNotExistsBean(t, &user_model.BlockedUser{UserID: 6})
 
 	org = unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 3})
 	err := DeleteOrganization(db.DefaultContext, org, false)
@@ -41,4 +43,6 @@ func TestDeleteOrganization(t *testing.T) {
 	user := unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 5})
 	require.Error(t, DeleteOrganization(db.DefaultContext, user, false))
 	unittest.CheckConsistencyFor(t, &user_model.User{}, &organization.Team{})
+
+	assert.Zero(t, unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1001}).NumFollowing)
 }