Nyassa may refer to:
- Nyassa Company, a royal company which administered part of Mozambique between 1891 and 1929
- Niassa Province, a province of Mozambique
- Malawi, a country in Southern Africa that used to be Nyasaland
- Lake Malawi, a lake between Malawi and Mozambique also known as Lake Nyassa
- SS Nyassa, a Portuguese-owned steamship
See also
edit- Nyssa (disambiguation)
- Nyssa (plant), a small genus of deciduous trees