John Hayward
John Hayward may refer to:
Politicians
- John Hayward (MP for Bridport) (c. 1355–1407), MP for Bridport, 1373–1401
 - John Hayward (MP for Dorchester), MP for Dorchester, 1558
 - Sir John Hayward (historian) (c. 1560–1627), English historian and politician
 - John Hayward (MP for Bletchingley) (c. 1571–1631)
 - John Hayward (MP for Bridgnorth and Saltash) (c. 1591–1636), English politician
 - John Hayward (Massachusetts politician) (died 1672), member of the Great and General Court
 - John Hayward (Newfoundland politician) (1819–1885), Newfoundland politician and judge
 - John Hayward (British politician), Conservative Parliamentary candidate for Cambridge, 2017
 
Others
- John Hayward (architect) (1808–1891), Exeter-based Gothic revival architect
 - Sir John Davy Hayward (1905–1965), English editor
 - Sir Jack Hayward (1923–2015), property developer
 - Jack Hayward (cricketer) (1910-1976), Rhodesian cricketer
 - Jack Hayward (political scientist) (1931–2017), English writer and academic
 - John T. Hayward (1908–1999), U.S. naval aviator and nuclear physicist
 - John Hayward (stained glass maker) (1929–2007), British stained glass artist
 - John William Hayward (1844–1913), Newfoundland artist and inventor
 - John Langford Hayward (1923–2013), British breast surgeon