| RISF | Rail Industry Skills Forum
| Others |
| RISF | Randall's Island Sports Foundation
| Others |
| RISF | Recovery Institute of South Florida
| Others |
| RISF | Regimento Interno do Senado Federal
| Others |
| RISF | Regional Information Society Forum
| Others |
| RISF | Regional Information System Finland
| Others |
| RISF | Reliability Indexed Sensor Fusion
| Others |
| RISF | Repeated Item Short Form
| Others |
| RISF | Research Institute of Subtropical Forestry
| Others |
| RISF | Residential Institutions Statutory Fund
| Others |
| RISF | Rhode Island School of the Future
| Others |