John Hay (1838–1905) was an American politician; Secretary of State 1898–1905.
John Hay may also refer to:
Arts and entertainment John Le Hay (1854–1926), Irish-born singer and actor John MacDougall Hay (1879–1919), Scottish novelist John Hay (director) (born 1964), English film director
Law and politics John Hay (New South Wales politician) (1816–1892), Australian politician John B. Hay (1834–1916), American politician John Hay (Canadian politician) (1862–1925), Canadian politician John Primrose Hay (1878–1949), British MP John Hay (Henley MP) (1919–1998), British politician
Nobility John Hay, 1st Lord Hay of Yester (c. 1450–c. 1508) John Hay, 2nd Lord Hay of Yester (died 1513), Scottish nobleman John Hay, 1st Earl of Tweeddale (1593–1653), Scottish aristocrat John Hay, 1st Marquess of Tweeddale (1625–1697), Lord Chancellor of Scotland John Hay, 12th Earl of Erroll (died 1704), Scottish nobleman Sir John Hay of Alderston, 1st Baronet (died 1706) John Hay, 2nd Marquess of Tweeddale (1645–1713), Scottish nobleman John Hay of Cromlix (1691–1740), Jacobite noble John Hay, 4th Marquess of Tweeddale (1695–1762), Scottish nobleman John Hay of Restalrig (1705–1781), Jacobite noble Sir John Hay, 6th Baronet (1788–1838), British baronet and MP Sir John Dalrymple-Hay, 3rd Baronet (1821–1912), British admiral and MP
Religion John Hay (Jesuit) (1546–1608), Jesuit scholar and educator John Hay (moderator) (1566–1627), Scottish minister John Hay (priest) (born 1945), Irish religious figure
Others John Hay Drummond Hay (1816–1893), British diplomat John Hay (cardiologist) (1873–1959), British physician John Hay (footballer) (fl. 1921–1922), Scottish footballer John Hay (nature writer) (1915–2011), American author John H. Hay (1917–1995), U.S. Army general John Hay (academic) (1942–2016), Australian academic
Other uses SS John Hay, a Liberty ship
See also Lord John Hay (disambiguation) John Hays (disambiguation) Jonathan Hay (disambiguation)