• ASU-57 and ASU-85, Soviet airborne support guns
• Aikido Schools of Ueshiba
• Airport Security Unit
• Air Separation Unit
• Army Service Uniform
• Asian Student Union
• Association of Simula Users
• Australian Services Union
• Active Service Unit, individual units with the Provisional Irish Republican Army
• Arab Socialist Union, the name of a number of political parties in the Arab world
• Advanced Setup Utility (IBM)
• Chinese term for Asud people.

Transportation

• Silvio Pettirossi International Airport (IATA code: ASU), Asuncion, Paraguay

Universities

• Ain Shams University, Egypt
• Aklan State University, Aklan, the Philippines
• Alabama State University, Montgomery, Alabama, USA
• Albany State University, Albany, Georgia, USA
• Alcorn State University, Lorman, Mississippi, USA
• Altay State University, Russia
• Angelo State University, San Angelo, Texas, USA
• Appalachian State University, Boone, North Carolina, USA
• Arizona State University, Phoenix metropolitan area, Arizona, USA
• Arkansas State University, Jonesboro, Arkansas, USA
• Augusta State University, Augusta, Georgia, USA
• Aichi Sangyo University, Okazaki, Aichi, Japan
• Aichi Shukutoku University, Aichi, Japan