SWR may refer to:
Radio and television Standing wave ratio, in radio-engineering a measure of impedance matching of loads
Broadcasters Scandinavian Weekend Radio, Virrat, Finland South West Radio, former broadcaster, England Südwestrundfunk, German radio and television broadcaster SWR Symphonieorchester, a radio orchestra affiliated with Südwestrundfunk SWR Vokalensemble, the vocal ensemble of Südwestrundfunk SWR Fernsehen, a German regional television channel SWR FM, former name of the SWR 99.9 FM radio broadcaster, Sydney, Australia
People Simeon Woods Richardson, American baseball player
Transportation Railway South Wales Railway, UK South Western Railway, a UK train operating company South Western Railway zone, India
Airlines Swiss International Air Lines (ICAO code), national airline of Switzerland Swissair (ICAO code), former national airline of Switzerland
Other uses SWR, an album by Acid Mothers Temple SWR Sound Corporation, guitar amplifier manufacturer Saweru language (ISO 639:swr), closely related to Yawa of central Yapen Island, Indonesia Scarlet Weather Rhapsody, 2008 video game of the Touhou Project series Scotch Whisky Regulations 2009, a UK law She Wants Revenge, American rock band Shoreham-Wading River High School, an American high school on Long Island, New York
See also Glasgow and South Western Railway (G&SWR), a former railway company in Scotland