Airman basic (AB) is the lowest enlisted rank in the United States Air Force immediately below airman. The male form of rank designation also applies to women. The pay grade for airman basic is E-1.

An airman is a member of an air force or air arm of a nation's armed forces. In certain air forces, it can also refer to a specific enlisted rank. An airman can also be referred as a soldier in other definitions. As a military rank designation the male form of address also applies to women.