Sven Arne Domnerus was a Swedish jazz alto saxophonist and clarinetist, popularly nicknamed Dompan.
He was best known for his recordings with visiting American players such as jazz artists such as James Moody, Art Farmer and Clifford Brown. Domnerus also played with Charlie Parker when he made his tour in Sweden 1950. Domnerus worked with the Swedish Radio Big Band from 1956 to 1978, and wrote for television and films during the period. He also recorded extensively with Bengt Hallberg. Together with fellow Swedes Bengt-Arne Wallin, Rolf Ericson and Ake Persson (the latter two both former members of Duke Ellington's Orchestra), he participated at the Jazz Workshops, organized for the Ruhrfest in Recklinghausen by Hans Gertberg from the Hamburg radio station.