Swedish jazz pianist, born 7 May 1941 in Oskarshamn, died 19 October 2011.

During the 1960s, Sjösten often played at the Gyllene Cirkeln restaurant in Stockholm. He played with international greats such as Ben Webster, Dexter Gordon, Art Farmer and Stan Getz, as well as with the Swedish tenor saxophonist Bernt Rosengren.