diff --git a/src/api/client/membership.rs b/src/api/client/membership.rs
index 6e3bc894..f89903b4 100644
--- a/src/api/client/membership.rs
+++ b/src/api/client/membership.rs
@@ -364,6 +364,14 @@ pub(crate) async fn invite_user_route(
 		user_id,
 	} = &body.recipient
 	{
+		if services.users.user_is_ignored(sender_user, user_id).await {
+			return Err!(Request(Forbidden("You cannot invite users you have ignored to rooms.")));
+		} else if services.users.user_is_ignored(user_id, sender_user).await {
+			// silently drop the invite to the recipient if they've been ignored by the
+			// sender, pretend it worked
+			return Ok(invite_user::v3::Response {});
+		}
+
 		invite_helper(&services, sender_user, user_id, &body.room_id, body.reason.clone(), false).await?;
 		Ok(invite_user::v3::Response {})
 	} else {
diff --git a/src/api/client/room.rs b/src/api/client/room.rs
index 1edf85d8..0d8e12a2 100644
--- a/src/api/client/room.rs
+++ b/src/api/client/room.rs
@@ -267,8 +267,16 @@ pub(crate) async fn create_room_route(
 	let mut users = BTreeMap::from_iter([(sender_user.clone(), int!(100))]);
 
 	if preset == RoomPreset::TrustedPrivateChat {
-		for invite_ in &body.invite {
-			users.insert(invite_.clone(), int!(100));
+		for invite in &body.invite {
+			if services.users.user_is_ignored(sender_user, invite).await {
+				return Err!(Request(Forbidden("You cannot invite users you have ignored to rooms.")));
+			} else if services.users.user_is_ignored(invite, sender_user).await {
+				// silently drop the invite to the recipient if they've been ignored by the
+				// sender, pretend it worked
+				continue;
+			}
+
+			users.insert(invite.clone(), int!(100));
 		}
 	}
 
@@ -476,6 +484,14 @@ pub(crate) async fn create_room_route(
 	// 8. Events implied by invite (and TODO: invite_3pid)
 	drop(state_lock);
 	for user_id in &body.invite {
+		if services.users.user_is_ignored(sender_user, user_id).await {
+			return Err!(Request(Forbidden("You cannot invite users you have ignored to rooms.")));
+		} else if services.users.user_is_ignored(user_id, sender_user).await {
+			// silently drop the invite to the recipient if they've been ignored by the
+			// sender, pretend it worked
+			continue;
+		}
+
 		if let Err(e) = invite_helper(&services, sender_user, user_id, &room_id, None, body.is_direct)
 			.boxed()
 			.await