Pelorus may refer to:
Places
- Pelorus (Sicily), a peninsula of the island of Sicily
- Pelorus Island, an island in Queensland
- Pelorus Islet, an islet in South Australia
- Pelorus River, a river in the South Island of New Zealand
- Pelorus Sound, in the Marlborough Sounds of New Zealand
- Pelorus (Πέλωρος), an ancient Greek name for, probably, the modern-day Aragvi; see Artoces of Iberia
Ships
- HMS Pelorus, several Royal Navy ships
- Pelorus (yacht), a 2001 luxury yacht
- Pelorus-class cruiser, a Royal Navy cruiser class
Other
- Pelorus (instrument), a navigational instrument
- Pelorus Jack, a dolphin
- Pelorus Research, a trading name of Holdingham Group Limited
- In Greek mythology, Pelorus was one of the Spartoi