Kahler is a German surname. Notable people with the surname include:
Art Kahler (1897–1982), American football and basketball player and coach
Bob Kahler (born 1917), American football player and coach
Erich Kahler (1885–1970), Czech-American literary scholar and essayist
Ferdinand N. Kahler (1864 – 1927), American inventor, entrepreneur and automobile pioneer
George Kahler (1889–1924), American baseball pitcher
Hans-Joachim Kahler (1908–2000), German general
Kris Kahler (born 1983), Australian rugby league footballer
Lyndsay Kahler, American beauty pageant winner
Otto Kahler (1849–1893), Austrian physician
Royal Kahler (1918–2005), American football player
Wolf Kahler (born 1938), German actor
