| Acronym | Meaning |
| RIF | Reduction In Force |
| RIF | Radar Interface |
| RIF | Radiation-Induced Fault |
| RIF | Rapid Innovation Fund (US DoD) |
| RIF | Recoverable Irradiated Fuel (spent fuel) |
| RIF | Refit Industrial Facility |
| RIF | Regional Innovation Fund (UK) |
| RIF | Registre International Français (French: French International Register) |
| RIF | Registro de Identificación Fiscal (Venezuelan IRS) |
| RIF | Retirement Income Fund (Canadian retirement plan) |
| RIF | Royal Irish Fusiliers |