John, Johnny, or Jon Hamilton may refer to:

Arts and entertainment

• John R. Hamilton (architect) (fl. 1840–1870), English architect
• John McLure Hamilton (1853–1936), Anglo-American artist
• John Hamilton (actor) (1887–1958), American actor
• John F. Hamilton (1893–1967), American actor
• John "Bugs" Hamilton (1911–1947), American trumpeter
• John Hamilton (artist) (1919–1993), British army officer and artist
• John R. Hamilton (photographer) (1923–1997), American photographer
• John T. Hamilton (born 1963), American literary scholar and musician
• Sterling Hayden (1916–1986), American actor who operated under the code name "John Hamilton" as an agent for the Office of Strategic Services in World War II

Military

• John Hamilton (Jacobite) (died 1691), Irish military officer in the Williamite War in Ireland
• John Hamilton (Royal Navy officer) (1714–1755), British naval officer
• John Hamilton (British Army officer) (1724–1802), British Army officer who served in North America
• John Hamilton (American Revolution) (died 1816), Loyalist military officer in the American Revolutionary War
• Sir John Hamilton, 1st Baronet, of Woodbrook (1755–1835), British and Portuguese general of the Napoleonic Wars
• John Fane Charles Hamilton (1829–1864), British naval officer, after whom the town of Hamilton in New Zealand is named
• John Patrick Hamilton (1896–1961), Australian recipient of the Victoria Cross
• John Brown Hamilton (1896–1973), Scottish recipient of the Victoria Cross
• John Graham Hamilton (1910–1994), British admiral
• John Hamilton (RNZAF officer) (fl. 1971–2006), former Chief of the Royal New Zealand Air Force

Nobility

• John Hamilton of Cadzow, 4th Laird of Cadzow (before 1370 – c. 1402) Scottish nobleman and soldier
• John Hamilton, 1st Marquess of Hamilton (c. 1535–1604), Scottish nobleman
• John Hamilton, 1st Lord Bargany (died 1658), Scottish peer
• John Hamilton, 4th Earl of Haddington (1626–1669), Scottish nobleman
• John Hamilton, 1st Lord Belhaven and Stenton (died 1679), Scottish peer
• John Hamilton, 2nd Lord Bargany (c. 1640–1693), Scottish peer and soldier
• John Hamilton, 2nd Lord Belhaven and Stenton (1656–1708), Scottish politician and critic of the 1707 Acts of Union
• John Hamilton, 1st Marquess of Abercorn (1756–1818), Scottish nobleman
• John Hamilton, 1st Baron Hamilton of Dalzell (1829–1900), Scottish soldier and politician
• John Hamilton, 1st Viscount Sumner (1859–1934), British law lord
• John d'Henin Hamilton, 3rd Baron Hamilton of Dalzell (1911–1990), Lord Lieutenant of Surrey

Politics

Religion

• John Hamilton (archbishop of St Andrews) (1512–1571), Scottish politician, Archbishop of St Andrews, Keeper of the Privy Seal
• John Hamilton (controversialist) (1547–1611), Scottish Catholic controversialist
• John Hamilton of Blair (born c. 1640), 17th century Church of Scotland minister and bishop
• John Hamilton (priest) (died 1756), Irish Anglican priest
• John William Hamilton (1845–1934), American, Bishop of the Methodist Episcopal Church

Sports

Others

• John Hamilton (architect) (1761–1812), architect and builder in Edinburgh's First New Town, uncle of Thomas Hamilton
• John Church Hamilton (1792–1882), son of the American founding father Alexander Hamilton
• John B. Hamilton (1847–1898), U.S. Surgeon General
• John Hamilton (university chancellor) (1851–1939), Quebec merchant and chancellor of Bishop's University, Lennoxville, Quebec
• John Hamilton (farmer) (fl. 1888–1930), Scottish sheep farming pioneer in Patagonia and landowner in the Falkland Islands
• John Hamilton (gangster) (1899–1934), Canadian murderer and bank-robber and associate of John Dillinger
• John Randle Hamilton (born 1944), American diplomat
• John Maxwell Hamilton (born 1947), journalist, civil servant and educator
• John Hamilton (judge), judge of the Supreme Court of New South Wales, Australia, 1997–2009
• Jon Hamilton, scientist and NPR correspondent

See also

• Jack Hamilton (disambiguation)
• Hamilton House (South Berwick, Maine)