Kohn is a surname. It may be related to Cohen. It may also be of German origin.^[1] Notable people with the surname include:

• Arnold Kohn (1905–1984), Croatian Zionist and longtime president of the Jewish community Osijek
• Alfie Kohn (born 1957), American lecturer and author
• Bernard Kohn (born 1931), French-American architect
• Charlotte Kohn (born 1948 in Vienna), Austrian journalist
• Dan Kohn-Sherbock, American-British Jewish theologian
• David Kohn (1838–1915), Russian archaeologist
• Donald Kohn (1942), American economist, former Federal Reserve Vice Chair
• Eugene Kohn (1887–1977), American rabbi
• Fritz Kortner (born as Fritz Nathan Kohn) (1892–1970), Austrian-born stage and film actor
• Joseph J. Kohn (1932–2023), Czechoslovakian-American mathematician
• Hans Kohn (1891–1971), American philosopher and historian
• Howard and Clara Kohn (1861–1933) and (1899–1988), American cattle ranchers
• Ladislav Kohn (born 1975), Czech hockey player
• Matt Kohn (born 1981), American football player
• Michael Kohn (born 1986), American major league baseball pitcher
• Mike Kohn (born 1972), American bobsledder
• Milton Kohn (1912–2001), American architect and holocaust collector
• Ralph Kohn (1927–2016), British medical scientist and benefactor of music
• Robert D. Kohn (1870–1953), American architect
• Sigurd Køhn (1959–2004), Norwegian jazz saxophonist and composer
• Sonja Kohn (born 1948), Austrian banker
• Walter Kohn (1923–2016), Austrian-American theoretical physicist and Nobel laureate
• Yetta Kohn (1843–1917), a German-American businesswoman and rancher