St Paul or St. Paul as a surname may refer to:
Francis St. Paul (born 1979), American football wide receiver George St Paul (1562–1613), English politician Henry St Paul (1777–1820), English soldier and politician Sir Horace St Paul, 1st Baronet (1775–1840), English soldier and politician Sir Horace St Paul, 2nd Baronet (1812–1891), English politician John St. Paul (1867–1939), Justice of the Louisiana Supreme Court