ASU

ASU, Asu, asu may refer to:

• ASU-57, Soviet airborne support gun
• ASU-85, Soviet airborne support gun
• Aikido Schools of Ueshiba
• Air separation unit
• Airport Security Unit (disambiguation)
• American Servicemen's Union, a union for soldiers founded in 1967, during the Vietnam War
• Army Service Uniform
• Australian Services Union
• Active service unit, individual units with the Provisional Irish Republican Army
• Arab Socialist Union (disambiguation), the name of a number of political parties in the Arab world
• Asian Skating Union
• Arbitrary Strength Unit, a performance value for mobile phone signals
• Avionics Switching Unit