| Acronym | Definition |
|---|
| RF | Radio Frequency |
| RF | Right Front |
| RF | Reference |
| RF | Right Field (baseball) |
| RF | Rising Force (Yngwie J. Malmsteen album) |
| RF | Regions Financial Corporation (stock symbol) |
| RF | Rheumatoid Factor |
| RF | Range Factor (arcane baseball statistic) |
| RF | Risk Factor |
| RF | Range Finder (camera) |
| RF | Rockford Fosgate (car audio) |
| RF | Red Faction (game) |
| RF | Renal Failure |
| RF | Riksidrottsförbundet (Swedish) |
| RF | Right Foot (dance) |
| RF | Rheumatic Fever |
| RF | Rascal Flatts (country music artist) |
| RF | Release Factor |
| RF | Reform Party (founded by Ross Perot in 1995) |
| RF | Reduction Factor |
| RF | République Française (French Republic) |
| RF | Register File |
| RF | Relative Frequency |
| RF | Rockefeller Foundation |
| RF | River Forest (suburb of Chicago, IL) |
| RF | Reaction Force |
| RF | Raised Face (flange) |
| RF | Receptive Field |
| RF | Revolving Fund |
| RF | Response Factor |
| RF | Rim Fire (ammunition) |
| RF | Reverend Father |
| RF | Reserve Force |
| RF | Radiative Forcing |
| RF | RNase-Free |
| RF | response force (US DoD) |
| RF | Replication Factor |
| RF | Righteous Fury (gaming, World of Warcraft) |
| RF | Rear Floor (automobile manufacturing) |
| RF | Recovery Factor (oil and gas) |
| RF | Regional Forces (Vietnam) |
| RF | Representative Fraction |
| RF | Ripper Free (DVD backup software without ripping decoders) |
| RF | Resume Flag |
| RF | Rhodesian Front (political party) |
| Rf | Retardation Factor (chromatography) |
| RF | Respirable Fraction |
| RF | Repair Factor |
| RF | Rear Focusing (lens technology) |
| RF | Rainforest Foundation (UK) |
| RF | Radiated Frequency |
| RF | Registered Forester |
| RF | Reconnaissance Fighter |
| RF | Ripping Friends |
| RF | Radio Fantasy |
| RF | Reconocimiento de Formas (Spanish) |
| RF | Rossiyskaya Federatsiya (Russian Federation) |
| RF | Replacement Factor |
| RF | Reaction Function (economics) |
| RF | Receptor Factor(s) |
| RF | Relative Body Fat |
| RF | Readiness Field |
| RF | Reaction Furnace |
| RF | Real Feel Temperature (index created by AccuWeather) |
| RF | Reflexology Forum |
| RF | Resistance to Frequency |
| RF | Ratio of Fronts (component) |
| RF | Reprographic Facility |
| RF | Ralph Furley |
| RF | Reduced Fratricide |
| RF | Relentless Family (gaming clan) |
| RF | Randomflame (gaming community) |
| RF | Refrigerant Ton |
| RF | US Revenue Playing Cards (Scott Catalogue prefix; philately) |
| RF | Rotary Foundation |
| RF | Radius to Fix |
| RF | Rolling Forecast (finance & marketing) |
| RF | Rutherfordium (element 104) |
| RF | Royal Fusiliers (WWI British Army regiment) |
| RF | Royal Family (UK) |
| RF | Right-Arm Fast (cricket; also seen as RAF) |
| RF | Russian Federation |
| RF | Roger Federer (tennis player) |
| RF | Roskilde Festival (Danish music festival) |
| RF | Rural Friends |
| RF | Rumble Fighter (online gaming) |