| Acronym | Definition |
|---|
| OIF➣Office for Intellectual Freedom (American Library Association) |
| OIF➣Operation Iraqi Freedom |
| OIF➣Organisation Internationale de la Francophonie (French: International Organization of Francophonie) |
| OIF➣Oman Investment Fund (est. 2006) |
| OIF➣Oracle Identity Federation |
| OIF➣Optical Internetworking Forum |
| OIF➣Osteogenesis Imperfecta Foundation |
| OIF➣Ocean Iron Fertilization |
| OIF➣Output Interface |
| OIF➣Optimum Index Factor |
| OIF➣Optimist International Foundation (St Louis, MO) |
| OIF➣Object Interchange Format |
| OIF➣Oil Immersion Field |
| OIF➣Osho International Foundation (Switzerland) |
| OIF➣Oil in Frame (motorcycle frame design) |
| OIF➣Operations Information File |