| Abbreviation | Definition |
|---|---|
| IABA | Indonesian Association of British Alumni |
| IABA | International Association of Boalt Alumni |
| IAMAO | International Association of Mapúa Alumni Ontario |
| IANN | International Alumni Network Netherlands |
| IBAA | Iowa Black Alumni Association |
| ICAA | Innis College Alumni Association |
| ICARS | International CASE Alumni Relations Survey |
| ISA | Internet Services for Alumni |
| JAA | Jaypee Alumni Association |
| JAAI | Jesuit Alumni Association of India |
| JAAI | Jesuit Alumni Associations of India |
| JAAI | JICA Alumni Association of India |
| JAAI | JSPS Alumni Association of Indonesia |
| JAAJ | Jica Alumni Association in Jordan |
| JAAJ | Jica Alumni Association Jamaica |
| JAAJ | JICA Alumni Association of Jordan |
| JAAT | JSPS Alumni Association of Thailand |
| JAFA | Journalism Alumni and Friends Association |
| JAH | Jefferson Alumni Hall |
| JAV | Jesuit Alumni Volunteer |