| Abbreviation | Definition |
|---|---|
| CEYA | Columbia Engineering Young Alumni |
| CHAA | Camp Hale Alumni Association |
| CLAA | Chican Latin Alumni Association |
| CLAA | Cornell Latino Alumni Association |
| CLAAC | Canadian Learning Abroad Alumni Community |
| CMCAF | California Mini Corps Alumni Foundation |
| CNAA | Coro National Alumni Association |
| COAA | Central Ohio Alumni Association |
| CODAA | College of Dentistry Alumni Association |
| COMNAC | College Of Music National Alumni Council |
| CSAA | Computer Science Alumni Association |
| CTAA | Cass Tech Alumni Association (Cass Technical High School; Detroit, MI) |
| CYA | Chapter of Young Alumni |
| DA | Diabetes Alumni |
| DAA | Duke Alumni Association |
| DAPR | Development Alumni and Parent Relations |
| DARP | Department of Alumni Relations and Placement |
| DEAA | Department of English Alumni Association |
| DEAA | Distinguished Engineering Alumni Awards |
| DICA | Defence Industry Courses Alumni |