| Abbreviation | Definition |
|---|---|
| IPCA | International Polymer Clay Association |
| IPCA | Irish Pest Control Association |
| IPCAA | Industrial Power Consumers Association of Alberta |
| IPCAA | International Pharmaceutical Congress Advisory Association |
| IPCEA | Insulated Power Cable Engineers Association |
| IPCEA | Invited Professional Contracting Engineers' Association |
| IPDA | International Periodical Distributors Association |
| IPDA | International Public Debate Association |
| IPDA | International Publishing Distribution Association |
| IPDA | Internet Philatelic Dealers Association |
| IPEA | Illinois Plumbing Education Association |
| IPHA | Idaho Public Health Association |
| IPHA | Illinois Paint Horse Association |
| IPHA | Illinois Public Health Association |
| IPHA | Indiana Public Health Association |
| IPHA | International Passive House Association |
| IPHA | International Prestressed Hollowcore Association |
| IPHA | Iowa Public Health Association |
| IPIA | Illinois Plumbing Inspectors Association |
| IPIA | International Private Infrastructure Association |