Kuhn is a surname of German origin, derived from the Old German name Conrad. In some cases it may be a Germanized version of Cohen. It may refer to the following individuals:
Abraham Kuhn (1838–1900), Alsatian otolaryngologist
Adam Kuhn, the naturalist and physicist
Alvin Boyd Kuhn (1880–1963), American scholar of mythology and linguistics
Bradley M. Kuhn (born 1973), American free software activist
Bowie Kuhn (1926–2007), American Major League Baseball commissioner
Franz Kuhn (1884–1961), German lawyer and translator of Chinese novels
Franz Felix Adalbert Kuhn (1812–1881), German philologist and folklorist
Frédéric Kuhn (born 1968), French hammer thrower
Friedrich Adalbert Maximilian Kuhn (1842–1894), German botanist
Fritz Kuhn (born 1955), German Green Party politician
Fritz Julius Kuhn (1896–1951), leader of the German American Bund
Harold W. Kuhn (1925–2014), American mathematician, John von Neumann Theory Prize winner, developer of Kuhn poker
Johannes von Kuhn (1806–1887), German Catholic theologian
Joseph Kuhn-Régnier (1873–1940), French illustrator
John Kuhn (born 1982), American football player
Judy Kuhn (born 1958), American singer and actress, Tony Award winner
Köbi Kuhn (born 1943), head coach of the Switzerland national football team
Maggie Kuhn (1905–1995), American activist, founder of the Gray Panthers
Markus Kuhn (American football) (born 1986), German-born NFL player
Markus Kuhn (computer scientist) (born 1971), German computer scientist
Oliver Kuhn (1898–1968), "Doc Kuhn", American football, baseball and basketball player
Oskar Kuhn (1908–1990), German paleontologist
Paul Kuhn
Peter Kuhn (1955–2009), American race car driver
Richard Kuhn (1900–1967), Austrian biochemist, winner of the 1938 Nobel Prize in Chemistry
Rick Kuhn (born 1955), Marxist economist and lecturer at the Australian National University
Robert Lawrence Kuhn (born 1944), American author, investment banker, China specialist and PBS TV documentary host
Simone Kuhn (born 1980), Swiss beach volleyball player
Steve Kuhn (born 1938), American jazz pianist
Thomas Samuel Kuhn (1922–1996), American philosopher and historian of science, author of The Structure of Scientific Revolutions
Walt Kuhn (1877–1949), American painter
Kihn (variant)
Hans Alfred Kihn, German playwright
Greg Kihn, American musician and novelist
Martin Kihn, American writer and digital marketer
W. Langdon Kihn (1898–1957), American painter and illustrator