| IAPO | Illinois Alliance to Prevent Obesity 
| Others |
| IAPO | Indian Agricultural Program of Ontario
| Others |
| IAPO | Interamerican Association of Pediatric Otorhinolaryngology
| Others |
| IAPO | International Academic Programmes Office
| Others |
| IAPO | International Alliance of Patients Organizations
| Others |
| IAPO | International Association for Physical Oceanography
| Others |
| IAPO | International Association of Professional Organizations
| Others |
| IAPO | Introduction to academic practice at Oxford
| Others |
| IAPO | Irish Association of Paediatric Osteopaths
| Others |
| IAPO | Irish Association of Prosthetists and Orthotists
| Others |