Gladiator could refer to:
- People:
- Gladiator, the Praetor of the Shi'ar Imperial Guard
- Starships and vehicles:
- ChR Gladiator, a Romulan Stormbird-class battle cruiser
- Gloster Gladiator, a World War II biplane
- Titles:
- Gladiator (title), an arena combatant, as in ancient Rome
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