| Acronym | Definition |
|---|
| RFF➣Resources For the Future |
| RFF➣Reseau Ferre de France (French: Network Bottle Pincers of France) |
| RFF➣Réseau Ferré de France |
| RFF➣Recency Frequency Factor |
| RFF➣Raster File Format |
| RFF➣Register File Format |
| RFF➣Repeat First Frame |
| RFF➣Repeat First Field |
| RFF➣Required Form Feed |
| RFF➣Rede Ferroviaria Federal (Brazilian railway) |
| RFF➣Relative Fundamental Frequency |
| RFF➣Right Foot Forward (Tae Kwan Do) |
| RFF➣Request For Forces |
| RFF➣Rainbow Film Festival (UK) |
| RFF➣Request for Flexibility (Fulton County Schools; Atlanta, GA) |
| RFF➣Rescue and Fire Fighting |
| RFF➣Rotterdam Film Festival (Rotterdam, Netherlands) |
| RFF➣Raster File Format (graphics) |
| RFF➣Real Friends Forever |
| RFF➣Remote Fixed Facility (US Coast Guard) |
| RFF➣Roger Federer Foundation |
| RFF➣Request for Feedback |
| RFF➣Refugee Film Festival (UNHCR) |
| RFF➣Run-From-Flash (Cisco) |
| RFF➣Ryukyu Freight Forwarder (shipping; Japan) |
| RFF➣Reason for Failure |
| RFF➣Request for Feature |
| RFF➣Raised Face Flange |
| RFF➣Redwall Fan Fiction |
| RFF➣Request For Flight |
| RFF➣Radio Frequency Finder |
| RFF➣Ready For Ferry |
| RFF➣Rescue Firefighter |