Nebula could refer to:
- Starships and vehicles:
- Prime reality:
- Alternate reality
- USS Nebula (Arbiter-class), an Arbiter-class missile cruiser.
- USS Nebula (Constitution-class), a Constitution-class flagship.
- USS Nebula (Defender-class), a Defender-class bomber.
- USS Nebula (Guardian-class), a Guardian-class support frigate.
- USS Nebula (Interceptor-class), an Interceptor-class fighter.
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