| Abbreviation | Definition |
|---|---|
| IPA | Indonesian Professionals Association |
| IPA | International Pediatric Association |
| IPA | International Phonetic Association |
| IPA | International Probiotics Association |
| IPA | International Psychoanalytical Association |
| IPA | International Psychogeriatric Association |
| IPA | International Publishers Association |
| IPA | Intimacy Professionals Association |
| IPAA | Idaho Prosecuting Attorneys Association |
| IPAA | Illinois Public Airport Association |
| IPAA | Illinois Public Airports Association |
| IPAA | Independent Petroleum Association of |
| IPAA | Independent Petroleum Association of America |
| IPAA | Iowa Public Airports Association |
| IPAA | Iranian Psychological Association of America |
| IPAPA | Indiana Plein Air Painters Association |
| IPAPA | Island Pacific Academy Parents Association |
| IPAW | Invasive Plants Association of Wisconsin |
| IPCA | Indian Paint and Coating Association |
| IPCA | Indian Printed Circuit Association |