St George or St. George is a surname, and may refer to:
Adolph von La Valette-St. George (1831–1910), German zoologist and anatomist
Arthur St George (1629–1701), Irish Member of Parliament
Arthur St. George, Church of Ireland clergyman
Baldwin St George (1362–1426), English politician
Christopher St George (1812–1877), Irish Member of Parliament
Ed St George (1910–1949), New Zealand rugby league footballer
George St George (Carrick MP) (died 1713), Irish politician
George St George, 1st Baron St George (c.1658–1735), Irish politician
George St George (Athlone MP) (1682–1762), Irish politician
Henry St George (1581–1644), English officer of arms
Henry St George, the younger (1625–1715), English officer of arms
Henry St George (died 1723), Irish Member of Parliament
Henry St George (died 1763), Irish Member of Parliament
John St George (1812–1891), British Army general
Judith St. George (1931–2015), American author
Katharine St. George (1894–1983), American politician
Marie Elyse St. George (born 1929), Canadian artist and poet
Neville St George (1897–1980), New Zealand rugby league footballer
Oliver St George (1661–1731), Irish politician
Sir Oliver St George, 1st Baronet (died 1695), Irish Member of Parliament
Paul St George, multimedia artist and sculptor
Quetton St. George (1771–1821), French Royalist military office and landowner
Richard St George (c.1550–1635), English officer of arms
Richard St George (died 1726), Irish Member of Parliament
Richard St George (died 1755), Irish Member of Parliament
Richard St George (died 1790), Irish Member of Parliament
Sir Richard St George, 1st Baronet (died 1789), Anglo-Irish politician
Sir Richard St George, 2nd Baronet (1765–1851), Anglo-Irish politician
Richard St George Mansergh-St George (c. 1752–1798), British Army officer and magistrate
St George St George, 1st Baron St George (c.1715–1775), Irish politician, grandson of George St George, 1st Baron St George
St George Gore-St George (1722–1746), Anglo-Irish politician and 5th Baronet
Sir St George Gore, 8th Baronet (1811–1878), sportsman
St George St George, 1st Baron St George (c.1715–1775)
Thomas St George (1615–1703), English officer of arms
Thomas St George (Clogher MP), (1738–1785), Irish Member of Parliament
Thomas R. St. George (1919–2014), American author and screenwriter
Ursula St. George (1895–1979), American actress and collector
Vivian De Gurr St George (1895–1979), English shoeblack