| Acronym | Definition |
|---|
| IGPP | Institute of Geophysics and Planetary Physics (La Jolla, California) |
| IGPP | Indira Gandhi Paryavaran Puraskar (Indian environmental award) |
| IGPP | Institut für Grenzgebiete der Psychologie und Psychohygiene eV (Freiburg, Germany) |
| IGPP | International Guild of Professional Practitioners (massage therapy; UK) |
| IGPP | Internet Guidepost for Plant Production (online database) |
| IGPP | Institutional General Plant Project (Lawrence Livermore National Laboratory; Livermore, CA) |
| IGPP | Intelligent Group Polling Protocol |