RF (disambiguation)

RF is an abbreviation for radio frequency.

Rf or RF may also mean:

Arts and entertainment

 * Red Faction (series), a series of revolution video games
 * Rinforzando,, in music notation
 * RF Online, an online RPG made by CCR

Business

 * Aero K, IATA code (2020—present)
 * Florida West International Airways, IATA code (1984—2017)
 * Regions Financial Corporation, NYSE stock symbol
 * Registered association (Finland) (Registrerad förening), Finnish legal status for a non-profit organization
 * Royalty-free, in business

Government and politics

 * France (République française)
 * Russian Federation
 * Rhodesian Front, former political party in Rhodesia

Biology and medicine

 * Rheumatic fever, an inflammatory disease
 * Release factors RF1, RF2, RF3, proteins
 * Reticular formation, in the brainstem
 * Rheumatoid factor, an antibody
 * Receptive field, the response characteristic of a neuron
 * Respiratory failure
 * Risk factor

Other uses in science and technology

 * Representative fraction
 * Rest frame
 * Retardation factor in a chromatographic system
 * Radiative forcing, the change in energy flux in the atmosphere caused by climate change factors
 * Random forest, an ensemble learning method in data science
 * Rutherfordium, symbol Rf, a chemical element
 * Canon RF mount, interchangeable camera lens mount

Sports

 * Range Factor, a baseball statistic
 * Right fielder, a defensive position in baseball
 * Roger Federer, a Swiss tennis player
 * Swedish Sports Confederation (Riksidrottsförbundet, RF), the umbrella organisation for Swedish sports