Kline (surname)
Kline is a surname. Notable people with the surname include:
- A. S. Kline (b. 1947), British author
- Adam W. Kline (1818–1898), New York politician
- Branden Kline (b. 1991), American baseball player
- Charles H. Kline (1870–1933), American politician, mayor of Pittsburgh, Pennsylvania
- Christopher Paul Kline (b. 1979), American musician known as "Vertexguy" or "the Vertex Guy"
- Franz Kline (1910–1962), American artist
- John Kline (Harlem Globetrotter) (fl. 1950s), American professional basketball player
- John Kline (politician) (b. 1947), United States Representative from Minnesota
- Lawrence Robert Klein (1920–2013), American economist
- Kevin Kline (b. 1947), American actor
- Morris Kline (1908–1992), American professor of mathematics and writer
- Otis Adelbert Kline (1891–1946), American adventure novelist
- Paul Kline (1937–1999), British academic psychologist
- Phill Kline (born 1959), American lawyer and politician from Kansas
- Richard Kline (b. 1944), American actor who played Larry on the sitcom Three's Company
- Stanley F. Kline (1901–1942), United States Navy sailor and Silver Star recipient