Alexander Hamilton (1755 or 1757–1804) was the first United States Secretary of the Treasury and one of the Founding Fathers of the United States of America.
Alexander Hamilton may also refer to:
Government and military
- Alexander Hamilton (sailor) (before 1688–after 1733), Scottish sea captain, commander of the Bombay Marine
- Alexander Hamilton (of Ballincrieff) (1684–1763), Scottish politician, MP for Linlithgowshire 1727–1741
- Alexander Hamilton (died 1768), Irish MP for Killyleagh
- Alexander Hamilton (died 1809), Irish MP for Ratoath, Carrickfergus and Belfast
- Alexander Hamilton (British Army officer) (1765–1838), British soldier of the Napoleonic Wars
- Alexander Hamilton, 10th Duke of Hamilton (1767–1852), Scottish politician
- Alexander Hamilton Jr. (1786–1875), American colonel and New York City lawyer, son of founding father Alexander Hamilton
- Alexander Hamilton (general) (1815–1907), American Civil War general, grandson of founding father Alexander Hamilton
- Alexander Hamilton (Australian politician) (1816–1869), member of the New South Wales Legislative Assembly
- Alexander Hamilton Jr. (1816–1889), New York City lawyer, Civil War aide-de-camp, grandson of founding father
- Alexander Hamilton, 10th Lord Belhaven and Stenton (1840–1920), Scottish politician
- Alex Cole-Hamilton (Born 1977), Scottish MSP