George Buchanan (1506–1582) was a Scottish humanist.
George Buchanan may also refer to:
Sir George Buchanan (soldier) (died 1651), Scottish soldier during the Wars of the Three Kingdoms George Buchanan (surgeon) (1827–1905), Scottish surgeon Sir George Buchanan (physician) (1831–1895), Chief Medical Officer (UK) Sir George Buchanan (diplomat) (1854–1924), British diplomat George Buchanan (engineer, born 1790) (1790–1852), Scottish civil engineer and land surveyor Sir George Buchanan (engineer, born 1865) (1865–1940), British civil engineer Sir George Seaton Buchanan (1869–1936), senior medical officer of the Ministry of Health (UK) and OIHP president George Buchanan (politician) (1890–1955), Scottish politician George Wesley Buchanan (1921–2019), American professor of theology George A. Buchanan (1842–1864), recipient of the Medal of Honor for actions in the American Civil War George Duncan Buchanan (c. 1935–2012), Anglican Bishop of Johannesburg