Supremacy could refer to the following:
- Supremacy, the flagship of First Order's Supreme Leader Snoke
- Supremacy-class attack ship, a type of capital ship employed by the Krath cult
- Mark VI Supremacy-class starfighter, a starfighter used by the reconstituted Sith Empire
- Supremacy, a song by the band The Emperor's New Clothes
- Star Wars: Rebellion, a 1998 strategy video game released in the United Kingdom under the title Star Wars: Supremacy
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