Fighter Squadron 21 (VF-21) Freelancers was an aviation unit of the United States Navy. Originally established in 1944 as VF-81 it was redesignated VF-13A in 1946, redesignated VF-131 in 1948, redesignated VF-64 in 1950 and redesignated VF-21 on 1 July 1959, it was disestablished on 31 January 1996. It was the third US Navy squadron to have the VF-21 designation.