| Abbreviation | Definition |
|---|---|
| IIPA | International Integrative Psychotherapy Association |
| IIPA | International Iridology Practitioners Association |
| IIPA | Italian International Parents Association |
| IIRA | Iron Indian Riders Association |
| IISA | International Independent Showmens Association |
| IISA | International Indian Statistical Association |
| IITA | Iowa Interpreters and Translators Association |
| IJA | Illinois Judges Association |
| IJA | Independent Journalist Association |
| IJA | International Jousting Association |
| IJA | International Judges Association |
| IJA | International Jugglers' Association |
| IJA | International Juggling Association |
| IJA | Ireland Japan Association |
| IJA | Islamic Jaffaria Association |
| IJBA | Indonesia Jetsport Boating Association |
| IJMA | Indian Jute Manufacturers Association |
| IJMA | Indian Jute Mills Association |
| IJMA | Infant and Juvenile Manufacturers Association |
| IKA | International Kiteboarding Association |