Ra's al Ghul is a title used by the leader of the League of Assassins, and so it may refer to various characters:
- An unnamed man, the predecessor to another unnamed but prominent man
- "Ra's al Ghul", whose real name was not revealed.
- Oliver Queen, who briefly held the title.
- Malcolm Merlyn, who took up the mantle of Ra's al Ghul after receiving the previous leader's ring from Oliver Queen.
- Nyssa Raatko, who also briefly held the title.