| Abbreviation | Definition |
|---|---|
| IPI | Image Permanence Institute |
| IPI | Indian Plastics Institute |
| IPI | Institute for Policy Innovation |
| IPI | Institute for Private Investors |
| IPI | International Partnering Institute |
| IPI | International Peace Institute |
| IPI | International Press Institute |
| IPI | International Psychotherapy Institute |
| IPIA | Institute of Public and International Affairs |
| IPIA | Institute of Public International Affairs |
| IPIT | Institute for Pharmacogenomics and Individualized Therapy |
| IPJ | Institute for Peace and Justice |
| IPJ | Institute on Political Journalism |
| IPM | Institute of Personnel Management |
| IPMCS | Institute for Public Management and Community Service |
| IPMD | Institute of Policy Management Development |
| IPMD | Institute of Project Managment and Development |
| IPNS | Institute of Particle and Nuclear Studies |
| IPNT | Institute for Positioning Navigation and Timing |
| IPOP | Institute for pharmaceutical outcomes and policy |