Fritz Pfenninger (15 October 1934 – 12 May 2001) was a Swiss cyclist. He was a specialist in six-day racing, winning a total of 33 events between 1956 and 1970, including 19 with Peter Post.
Track honours
Six-day racing
- 1956 : Aarhus (with Oscar Plattner)
- 1957 : Copenhagen (with Jean Roth)
- 1958 : Münster, Zurich (with Jean Roth)
- 1960 : Münster (with Hans Junkermann)
- 1961 : Berlin, Frankfurt (with Klaus Bugdahl)
- 1962 : Essen, Frankfurt, Zurich (with Klaus Bugdahl)
- 1963 : Cologne, Zurich, Brussels (with Peter Post)
- 1964 : Dortmund (with Rudi Altig), Anvers (with Noël Foré and Peter Post), Berlin, Brussels, Zurich (with Peter Post)
- 1965 : Berlin, Dortmund, Zurich (with Peter Post)
- 1966 : Essen, Ghent, Amsterdam (with Peter Post), Anvers (with Jan Janssen and Peter Post), Quebec (with Sigi Renz)
- 1967 : Bremen, Essen, Frankfurt (with Peter Post), Anvers (with Jan Janssen and Peter Post)
- 1968 : Montreal (with Louis Pfenninger), Zurich (with Klaus Bugdahl)
- 1970 : Zurich (with Peter Post and Erich Spahn)
European Championships
- Champion of Europe in 1962 (with Klaus Bugdahl), 1964 and 1967 (with Peter Post)