| Abbreviation | Definition |
|---|---|
| IPAL | Io Portable Audio Laboratory |
| IPAL | Ipod Portable Audio Laboratory |
| IPEL | Integrated Power Electronics Laboratory |
| IPEP | Immunoglobulin Protein ElectroPhoresis |
| IPG | Immobilized Ph Gradient |
| IPL | Image Processing Laboratory |
| IPL | Increased Ploidy Level |
| IPLA | Instituto Productos Lacteos Asturias |
| IPM | International Parasite Movement |
| IPM | International Partnership for Microbicides |
| IPP | Interrupted Poisson Process |
| IPRL | Infant Primate Research Laboratory |
| IPRL | Invasive Plant Research Laboratory |
| IPSL | Interconnected Power Systems Laboratory |
| IPT | Insulin Potentiation Therapy |
| IPT1 | InositolPhosphor Transferase 1 |
| IPT2 | InositolPhosphor Transferase 2 |
| IPV | Inactivated Polio Vaccine |
| IPVL | Image Processing and Visualization Laboratory |
| IR | Independent Review |