John Hay (disambiguation)
John Hay is the name of the following people:
- John Hay (1838–1905), American politician
- John Hay, 1st Lord Hay of Yester (1450–1508), Scottish nobleman
- John Hay (theologian) (1546 – around 1607), Scottish theologian
- John Hay, 1st Marquess of Tweeddale (1625–1697), British politician
- John Hay, 2nd Marquess of Tweeddale (1645–1713), British politician
- John Hay (director) (born 1964), British director and screenwriter
- John B. Hay (1834-1916), American politician