RARF
| Acronym | Definition |
|---|---|
| RARF | Riken Accelerator Research Facility (heavy-ion research; Japan) |
| RARF | Regional Area Road Fund (Arizona Department of Transportation) |
| RARF | Rio Art Rock Festival (Rio de Janeiro, Brazil) |
| RARF | Romanian Amateur Radio Federation |
| RARF | Reflected Array Radio Frequency |
| RARF | Recurrent Active Rheumatic Fever (inflammatory disease) |