Assassin may refer to:
- , a hired killer
- , an Imperial-class Star Destroyer
- Assassin 1, an ImperialCR90 corvette
- , a term for droids programmed as assassins
- , a group in the Yuuzhan Vong empire
- , clone troopers specially trained to kill Jedi
- , an armed upgrade of the CR90 corvette
- , Force-sensitives trained to capture or kill Jedi
- "", an episode of Star Wars: The Clone Wars,