HARF
| Acronym | Definition |
|---|---|
| HARF | Hoosier Auto Racing Fans (fan club; Indiana) |
| HARF | Hikkaduwa Area Relief Fund |
| HARF | Hermes Absolute Return Fund (Guernsey; UK) |
| HARF | Halieus Anthropos Research Foundation |
| HARF | High Angle Reverse Fault (Earth Science Geomorphology) |
| HARF | Heavy Aromatic Residual Fuel |