Südwestrundfunk (pronounced [zyːtˈvɛstˌʁʊntfʊŋk]; lit. 'Southwest Broadcasting'), shortened to SWR (pronounced [ˌɛsveːˈʔɛʁ]), is a regional public broadcasting corporation serving the southwest of Germany, specifically the federal states of Baden-Württemberg and Rhineland-Palatinate. The corporation has main offices in three cities: Stuttgart, Baden-Baden and Mainz, with the director's office being in Stuttgart. It is a part of the ARD consortium.

It broadcasts on two television channels and six radio channels, with its main television and radio office in Baden-Baden and regional offices in Stuttgart and Mainz. It is the second largest broadcasting organization in Germany behind WDR. SWR, with a coverage of 55,600 km2 (21,500 sq. mi.), and an audience reach estimated to be 14.7 million. SWR employs 3,700 people in its various offices and facilities.