How do I delete a group in Facebook?
I am the owner of a Facebook group and there are no other users except me (I removed them all).
Facebook Help Center says:
Our system automatically deletes groups once they're empty (no members). If you created the group, you can delete the group by removing all members and then yourself. Note that if you were not the first admin and creator of this group, you will not be able to delete the group unless the group creator has left it voluntarily.