John Buckley may refer to:

Politicians

• John Buckley (Canadian politician) (1863–1942), member of the Legislative Assembly of Alberta, 1921–1935
• John Buckley (attorney) (1885–1959), Connecticut politician
• John Buckley (Virginia politician) (born 1953), Virginia politician
• John Francis Buckley (1891–1931), barrister, soldier, and Canadian federal politician
• John F. Buckley (1892–1965), Wisconsin politician
• John J. Buckley (mayor) (1915–1997), Massachusetts politician, mayor of Lawrence, Massachusetts
• John J. Buckley (sheriff) (1929–1994), Sheriff of Middlesex County, Massachusetts
• John L. Buckley (1900–after 1948), New York politician
• John R. Buckley (1932–2020), Massachusetts politician

Sportspeople

• John Buckley (baseball) (1869–1942), American baseball pitcher
• John Buckley (cricketer) (born 1956), South African cricketer
• John Buckley (footballer, born 1962), Scottish football manager and former professional footballer
• John Buckley (footballer, born 1999), English footballer
• John Buckley (Aghabullogue hurler) (1863–1935), Irish hurler for Cork and Aghabullogue
• John Buckley (Glen Rovers hurler) (born 1958), Irish hurler for Cork and Glen Rovers

Other

• John Buckley, Australian artist, director of Institute of Modern Art 1976–79
• John Buckley (martyr) (died 1598), English religious leader and martyr
• John Buckley (bishop) (born 1939), Irish Catholic religious leader
• John Buckley (composer) (born 1951), Irish composer
• John Buckley (historian) (born 1967), professor of military history at the University of Wolverhampton
• John Buckley (sculptor) (born 1945), English sculptor
• John Buckley (VC) (1813–1876), British Victoria Cross recipient
• John C. Buckley (1842–1913), American Civil War soldier and Medal of Honor recipient