Choonhavan is a surname, used by members of the Choonhavan family.
Notable people with the surname include:
Boonruen Choonhavan (1920–2021), Thai socialite and wife of Chatichai Chatichai Choonhavan (1920–1998), Thai army officer, diplomat, and politician, son of Phin Kraisak Choonhavan (1947–2020), Thai politician, son of Boonruen and Chatchai Phin Choonhavan (1891–1973), Thai military leader and politician