The Air Force Specialty Code (AFSC) is an alphanumeric code used by the United States Air Force to identify a specific job. Officer AFSCs consist of four characters and enlisted AFSCs consist of five characters. A letter prefix or suffix may be used with an AFSC when more specific identification of position requirements and individual qualifications is necessary. The AFSC is similar to the Military Occupational Specialty Codes used by the United States Army and the United States Marine Corps or enlisted ratings and USN officer designators and Naval Officer Billet Classifications (NOBCs) used by the United States Navy and enlisted ratings and USCG officer specialties used by the United States Coast Guard. The United States Space Force equivalent is known as the Space Force Specialty Code (SFSC).

The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Signal Corps, the USAF was established as a separate branch of the United States Armed Forces in 1947 with the enactment of the National Security Act of 1947. It is the second youngest branch of the United States Armed Forces and the fourth in order of precedence. The United States Air Force articulates its core missions as air supremacy, global integrated intelligence, surveillance and reconnaissance, rapid global mobility, global strike, and command and control.