Lasa may refer to:
- Lasas were gods and goddesses In Etruscan mythology who accompanied Turan, the goddess of love.
- Laboratory Animal Science Association, an association to advance scientific understanding and knowledge of the use, care and welfare of laboratory animals and promote refinement, reduction and replacement.
- Latin American Studies Association.
- Liberal Arts and Science Academy High School of Austin, Texas, an advanced program magnet school admitting select students from the Austin Independent School District.
Places:
- Lasa (France), a small village in the province of Basse-Navarre, in the South part of France.
- Lhasa, the capital of Tibet Autonomous Region of People's Republic of China.
- Lasa, the Italian name for Laas, a municipality in South Tyrol, Italy.
- Lasa, Paphos, a village in Paphos District, Cyprus.
People:
- Mikel Lasa (born 1971), Spanish football (soccer) player.
- Tassilo von Heydebrand und der Lasa, German chess master.