John Gore may refer to:

• John Gore (fl.1414-1431), MP for Malmesbury
• John Gore (Lord Mayor) (died 1636), English merchant, Lord Mayor of London, 1624
• John Gore (Royal Navy officer, died 1790), American sailor who accompanied James Cook
• John Gore, 1st Baron Annaly (1718–1784), Irish peer and MP for Jamestown and Longford County
• John Gore (Royal Navy officer, born 1772) (1772–1836), British naval commander
• John J. Gore (1878–1939), U.S. federal judge
• John Gore (died 1773), British MP for Cricklade
• John Gore (1621–1697), British MP for Hertford
• John Gore (died 1763), British MP for Great Grimsby
• John Ellard Gore (1845–1910), Irish amateur astronomer
• Jack Gore (1899–1971), British rugby union and rugby league footballer
• John F. Gore (born 1926), American military officer
• John Gore (theatre producer) (born 1961), British theatre producer
• John Gore (priest) (1820–1894), Anglican priest in Ireland

• John Ormsby-Gore, 1st Baron Harlech (1816–1876), British peer and Conservative MP for Caernarvonshire and Shropshire North
• John Gore Jones (1820–1868), Australian politician