Kuhn is a surname of German origin. It may refer to the following:

• Abraham Kuhn (banker) (1819–1892), German-American founder of Kuhn, Loeb & Co.
• Abraham Kuhn (otolarynologist) (1838–1900), Alsatian otolaryngologist
• Adam Kuhn (1741–1817), American naturalist and physicist
• Albert Kuhn (1860–1934), Washington state pioneer and businessman
• Alvin Boyd Kuhn (1880–1963), American scholar of mythology and linguistics
• Annette Kuhn, British author, cultural historian, and educator
• Anthony Kuhn, NPR correspondent in Beijing, China
• Bob Kuhn, mayor of Glendora, California
• Bradley M. Kuhn (born 1973), American free software activist
• Bowie Kuhn (1926–2007), American baseball commissioner
• Charles Kuhn (1892–1989), cartoonist
• Charles L. Kuhn (1902-1985), American academic and art historian
• Deanna Kuhn (born 1944), professor of psychology
• 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
• Heino Kuhn (born 1984), South African cricketer
• Ida Soule Kuhn (1869–1952), American political and social activist
• 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
• Keegan Kuhn, American documentary filmmaker, director, producer, and professional musician
• Köbi Kuhn (1943–2019), Swiss football coach
• Liam Kuhn, (born 2008), dummy
• Maggie Kuhn (1905–1995), American activist, founder of the Gray Panthers
• Markus Kuhn (American football) (born 1986), German-born American football player
• Markus Kuhn (computer scientist) (born 1971), German computer scientist
• Mickey Kuhn (1932–2022), American child actor
• Oliver Kuhn (1898–1968), "Doc Kuhn", American football, baseball and basketball player
• Oskar Kuhn (1908–1990), German paleontologist
• Philip A. Kuhn (1933–2016), Harvard professor and China expert
• Paul Kuhn (disambiguation), several people
• Peter Kuhn (1955–2009), American race car driver
• Richard Kuhn (1900–1967), Austrian biochemist, 1938 Nobel Prize in Chemistry
• Rick Kuhn (born 1955), Australian Marxist economist and lecturer
• Robert Lawrence Kuhn (born 1944), American author, investment banker, China specialist and PBS TV documentary host
• Robert Verrill Kuhn (known as Bob Keane, 1922–2009), American clarinetist, producer and label owner
• Roland Kuhn, Swiss psychiatrist
• Simone Kuhn (born 1980), Swiss beach volleyball player
• Steve Kuhn (born 1938), American jazz pianist
• Thomas Kuhn (1922–1996), American philosopher and historian of science, author of The Structure of Scientific Revolutions
• Walt Kuhn (1877–1949), American painter

Kihn (variant)

• Greg Kihn, American musician and novelist
• Martin Kihn, American writer and digital marketer
• W. Langdon Kihn (1898–1957), American painter and illustrator