Svend Asmussen (born February 28, 1916 in Copenhagen, Denmark) is a jazz violinist from Denmark, known as "The Fiddling Viking". Asmussen grew up in a musical family, starting violin lessons at age 7. At age 16 he first heard recordings by jazz violin great Joe Venuti and began to emulate his style. He started working professionally as a violinist, vibraphonist, and singer at age 17, leaving his formal training behind for good.
Early in his career he worked in Denmark and on cruise ships with artists such as Josephine Baker and Fats Waller. Asmussen later was greatly influenced by Stuff Smith, who he met in Denmark. In the late 1950s, Asmussen formed the trio Swe-Danes with singer Alice Babs and guitarist Ulrik Neumann. The group became very popular in Scandinavia for their music hall style entertainment and also toured the United States. Asmussen also worked with Benny Goodman, Lionel Hampton, and Duke Ellington. Asmussen was invited by Ellington to play on the Jazz Violin Session recording in 1963 with St?phane Grappelli and Ray Nance. In 1966, Asmussen appeared alongside Grappelli, Stuff Smith, and Jean-Luc Ponty in a jazz violin summit in Switzerland that was issued as a live recording. He made an appearance at the 1967 Monterey Jazz Festival, which included a celebrated violin summit with him, Ray Nance and Jean-Luc Ponty.