C
- C of C - College of Charleston
- Cal - University of California, Berkeley
- Cal Poly - California Polytechnic State University, San Luis Obispo
- Cal Poly Pomona - California State Polytechnic University, Pomona
- Caltech - California Institute of Technology
- Cal U, CUP - California University of Pennsylvania
- Cal State - California State University (various campuses)
- Carolina - University of North Carolina at Chapel Hill, University of South Carolina
- Central - Central State University, North Carolina Central University
- CCNY - City College of New York
- CCSU - Central Connecticut State University
- CCU - Coastal Carolina University
- CCV - Community College of Vermont
- Chapel Hill - University of North Carolina at Chapel Hill
- Charlotte - University of North Carolina at Charlotte
- Chatt/Chattanooga - University of Tennessee at Chattanooga
- Chico State - California State University, Chico
- CMSU - Central Missouri State University
- City Tech - New York City College of Technology
- CMC - Claremont McKenna College
- CMU - Carnegie Mellon University, Central Michigan University
- CNU - Christopher Newport University
- Coast Guard - United States Coast Guard Academy
- College Park - University of Maryland, College Park
- CSB/SJU - College of Saint Benedict/Saint John's University
- CSC - Castleton State College
- CSE - College of Saint Elizabeth
- CSI - College of Staten Island
- CSU - California State University, Cleveland State University, Colorado State University, Clayton State University
- CSUEB - California State University, East Bay (formerly California State University, Hayward)
- CSULA - California State University, Los Angeles
- CSU-Pueblo - Colorado State University-Pueblo
- CSUS - California State University, Sacramento
- CU - Clemson University, University of Colorado at Boulder, University of Colorado system, Columbia University, Cornell University
- CUNY - City University of New York
- 'Cuse - Syracuse University
Read more about this topic: List Of Colloquial Names For Universities And Colleges In The United States