A
- AECOM - Albert Einstein College of Medicine
- Air Force - United States Air Force Academy
- Annapolis - U.S. Naval Academy
- A&M - Texas A&M University, but also others; see A&M
- A&T - North Carolina A&T State University
- Apprentice School - Newport News
- Army - U.S. Military Academy
- ASU - Alabama State University, Albany State University, Alcorn State University, Angelo State University, Appalachian State University, Arizona State University, Arkansas State University, Augusta State University
- AU - Adelphi University, Alfred University, American University, Anderson University, Asbury University, Auburn University
- AUM - Auburn University Montgomery
Read more about this topic: List Of Colloquial Names For Universities And Colleges In The United States