MASA is the Mathematical Association of South Australia MASA is the Middle Atlantic Speedskating Association. MASA is Marine Aquariums of South Africa MASA is Marine Aquarium Society of Australia (External Link) MUSSAS is the name of the Spanish pop group featuring Marey from Lunae. M.A.S.A. is the fictional Mexican Aeronáutica y Spacia Administración depicted in South Park episode 913.… (More on Masa)