The Southwest German Radio Symphony Orchestra (also known in English as the SWR Baden-Baden Freiburg Symphony Orchestra and in German as the Sinfonieorchester des Südwestrundfunks) was a German radio orchestra located in the German cities of Baden-Baden and Freiburg.
The first incarnation of the orchestra occurred in 1946, initially with members of the discontinued spa orchestra of the city as the core of players. The revival of the spa orchestra two years later forced the reorganization of the radio orchestra. Subsequently, Hans Rosbaud was hired as the orchestra's first chief conductor. Rosbaud was already well known as a champion of modern music, and Heinrich Strobel, the music director in charge of the orchestra, shared this sympathy with contemporary music. Thus the orchestra had as its focus performances of modern music.
The orchestra was first sponsored by Südwestfunk (SWF), a public broadcasting corporation headquartered in Baden-Baden. In 1998 SWF merged into Südwestrundfunk ("Southwest Broadcasting"), which took over responsibility for the orchestra. The orchestra's final chief conductor was François-Xavier Roth, from 2011 to 2016. Michael Gielen, chief conductor from 1986 to 1999, had the title of Ehrendirigent (conductor laureate) with the orchestra.