Manuka may refer to:
- The flowering plant Leptospermum scoparium (Mānuka in Māori)
- Manuka, Canberra, an area in the Australian Capital Territory, named after the plant
- Manuka Oval, a stadium in the above territory
- Manuka Primary School in North Shore, New Zealand
- Manuka Gorge, a canyon close to Waitahuna in New Zealand
- Manuka honey, a monofloral honey
- Mānuka (waka), from Māori mythology
- Manuka State Wayside Park and forest reserve, a park on the Island of Hawaiʻi
- Manuka Football Club, a defunct Australian Rules Football club
- Gentian Manuka (born 1991), Albanian footballer