Basa may refer to:
Agreements Bilateral Aviation Safety Agreement, between National Aviation Authority regulators
People Basa (surname) Bassa people (Cameroon), also spelled Basa, an ethnic group Basa, leader and namesake of the Basingas, an Anglo-Saxon tribe
Languages Basaa language, also spelled Basa, a Bantu language spoken in Cameroon Basa languages, a cluster of Kainji languages spoken in Nigeria
Places Basa River, Romania Basa, Nepal, a village development committee Basa, Sudan, a village Basa Air Base, Floridablanca, Pampanga, Philippines Barrow Arts and Sciences Academy, high school in Barrow County, Georgia
Organizations British Atomic Scientists Association, founded in 1946 Black and Asian Studies Association, set up in London in 1991 BASA Film, the Afghanistan cinema club
Other uses Basa (fish), a type of catfish Basa (cicada)
See also BASA-press (1992–2009), the oldest independent news agency in Moldova Bassa (disambiguation) Bhāṣā, the word for "language" in many Asian languages