| INPA | Imaging Neutral Particle Analyzer 
| Others |
| INPA | Independent Neurorehabilitation Providers Alliance
| Others |
| INPA | Indian National Portage Association
| Others |
| INPA | Indian Naval Placement Agency
| Others |
| INPA | Indiana News Photographers Association
| Others |
| INPA | Industria Nazionale Prodotti Alimentari
| Others |
| INPA | Institute for Nuclear and Particle Astrophysics
| Others |
| INPA | Instituto Nacional de Pesquisas
| Others |
| INPA | Interchangeable Numbering Plan Area
| Others |
| INPA | International Newborn Photography Association
| Others |
| INPA | Interpreter Fur Prufablaufe
| Others |
| INPA | Israel Nature and Parks Authority
| Others |
| INPA | Israel Nature Parks Authority
| Others |