Geir Holmsen
 Geir Holmsen (born 12 December 1956 in Oslo Norway) Norwegian jazz musician bassist arranger and composer. He participated in various bands connected to the jazz clubb Club 7 in Oslo from the mid-1970s including Kråbøl Lotus and Chipahua. He is also known from Jon Eberson Group (1980–84) Jazzpønkensemblet (1982–85) and Oslo Rhythm & Blues Ensemble (1986–87).