Tongo may refer to:
- People
- Tongo (entertainer), a Peruvian Cumbia singer
- Places
- Tongo, Ghana, town in Bolgatanga region of northeast Ghana
- Tongo, Sierra Leone, or Tongoma, town in Kenema District of eastern Sierra Leone
- Tongo Field, home ground of its football club the Gem Stars
- Tongo, Ethiopia, town in Benishangul-Gumuz Zone of Ethiopia
- Tongo Island, an island of Albania in the Ionian Sea
- Linguistics
- Tongue (language), notably in Sranan Tongo, Surinamean creole
- In fiction
- Tongo (Star Trek), fictional card game
- Tongo, TV apeman, visitor to Gilligan's Island
- Other
- Tongo, common name for the red mangrove Rhizophora mangle in Tonga