X1, or X-1, was a designation applied to the following:
- X1, a Force-sensitive clone trooper.
- The TIE Advanced x1, an Imperial starfighter model.
- X-1, a poison.
- X-1, an Imperial assassin.
- The X-1 Viper, known as the Automadon, an Imperial battle droid model.
- Modified X1 carbine a Wookiee weapon.
- Ranger X-1, an X-1 series droid.
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