- Sydney
- could refer to:
- Sydney, a city on Earth
- Sydney Caldwell from Star Trek: The Cantabrian Expeditions
- USS Sydney (NCC-1793) a Constitution-class starship.
- USS Sydney (NCC-2005), a Sydney-class starship.
- USS Sydney (NCC-2741), a Loknar-class frigate.
- New Sydney, a planet in the Alpha Quadrant.
- Disambiguation page: If you followed a link to Sydney (disambiguation) that brought you here, you might want to go back and change it to link to a more specific title. (For example: Sydney (disambiguation) (some other term), or choose from one of those listed above.)