Kahl (German ) is a surname. Notable people with the surname include:
Alfred Kahl (1877–1946), German academic B. Michael Kahl (1941–2012), American public affairs consultant/lobbyist Bruno Kahl (1914–1999), German Wehrmacht officer Chris Kahl (born 1977), American musician Colin Kahl (born 1971), American gov official Daniel Kahl (born 1960), American-Japanese television personality Gordon Kahl (1920–1983), American animator Margot Kahl (born 1961), Chilean engineer and television host Milt Kahl (1909–1987), American animator Nick Kahl (politician) (born 1977), American politician Nick Kahl (baseball) (1879–1959), American baseball player Oscar Kahl (born 1997), Thai football player Thede Kahl (born 1971), German academic