Bill or William Cline may refer to:
Milton William Cline (1825–1911), American sailor, soldier, scout and pioneer William Cline Borden (1858–1934), American surgeon and key planner of Walter Reed Army Medical Center William Cline (cinematographer) (1903–1976), American film and TV director of photography, a/k/a Wilfrid M. Cline William A. Cline (1910–2012), American defense attorney in 1944 Court-Martial of Jackie Robinson William C. Cline, American film historian during 1960s–1990s specializing in serials (King of the Rocket Men) William R. Cline (born 1941), American economist, Senior Fellow at Peterson Institute for International Economics Bill Cline (born 1943), Canadian football player
See also William G. Kline (1882—after 1942), American football, baseball and basketball coach William Klyne (1913–1977), English organic chemist and academic, a/k/a Bill Klyne William Klein (disambiguation)