Fritz Pfenninger

{{Short description|Swiss cyclist (1934–2001)}}

{{Use dmy dates|date=January 2024}}

{{Infobox cyclist

| name = Fritz Pfenninger

| image = Peter Post and Fritz Pfenninger 1966.jpg

| image_size = 300px

| caption = Peter Post and Fritz Pfenninger in 1966

| fullname =

| nickname =

| birth_date = {{birth date|df=yes|1934|10|15}}

| birth_place = Zurich, Switzerland

| death_date = {{death date and age|df=yes|2001|5|12|1934|10|15}}

| death_place = Zurich, Switzerland

| height =

| weight =

| discipline = Track

| role = Rider

| ridertype =

| amateuryears1 =

| amateurteam1 =

| proyears1 = 1955–1957

| proteam1 = Allegro

| proyears2 = 1958–1960

| proteam2 = Mondia

| proyears3 = 1961–1966

| proteam3 = {{UCI team code|Ignis|1961}}

| proyears4 = 1967–1969

| proteam4 = Zimba

| proyears5 = 1970

| proteam5 = {{UCI team code|GBC|1970}}

| proyears6 = 1971–1972

| proteam6 = Biofin

| manageyears1 =

| manageteam1 =

| majorwins =

| medaltemplates =

| updated =

}}

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.