| Abbreviation | Definition |
|---|---|
| IAWG | Irish Association for Women in Geosciences |
| IAWM | Indianapolis Association of Wabash Men |
| IAWM | International Association of Women Ministers |
| IAWP | International Association of Wellness Professionals |
| IAWP | International Association of Women Police |
| IAWP | International Association of Workforce Professionals |
| IBA | Illinois Bankers Association |
| IBA | Independent Bakers Association |
| IBA | Independent Brewers Association |
| IBA | Indiana Broadcasters Association |
| IBA | Indiana Builders Association |
| IBA | International Bar Association |
| IBA | International Bartenders Association |
| IBA | International Bartender's Association |
| IBA | International Bodyboard Association |
| IBA | International Bodyflight Association |
| IBA | Iowa Bandmasters Association |
| IBA | Irish Brokers Association |
| IBA | Irvington Business Association |
| IBAA | International Body Arts Association |