John Lyon
John or "Jack" Lyon may refer to:
Scottish
- John Lyon (botanist) (1765–1814) Scottish botanist and plant collector
- John Lyon, Lord of Glamis (1340–1382), Chamberlain of Scotland
- John Lyon, 1st Master of Glamis (died 1435), see Earl of Strathmore and Kinghorne
- John Lyon, 3rd Lord Glamis (1431–1497)
- John Lyon, 4th Lord Glamis (died 1500)
- John Lyon, 6th Lord Glamis (died 1528)
- John Lyon, 7th Lord Glamis (1510–1558), (forfeit in 1537 but restored in 1543)
- John Lyon, 8th Lord Glamis (died 1578), Scottish nobleman, judge and Lord High Chancellor of Scotland
- John Lyon, 4th Earl of Strathmore and Kinghorne (1663–1712)
- John Lyon, 5th Earl of Strathmore and Kinghorne (1696–1715)
- John Lyon (poet) (1803–1889), Scottish LDS poet
- John Herbert Bowes-Lyon (1886–1930)
- John Bowes, 9th Earl of Strathmore and Kinghorne (1737–1776), born John Lyon
English
- Sir John Lyon or Lyons (1514 - 1564), Lord Mayor of London from 1554 to 1555. (His father Thomas Lyons [sic] of Perivale, Middlesex, used the 's' spelling of the name.[1] The difference in spelling is because the phonetic spelling of the French pronunciation of the name was not standardised until after the 17th century).
- John Lyon (d. 1592), yeoman landowner and founder of Harrow School, after whom The John Lyon School, and The John Lyon's Charity, and a Harrow School house, Lyon's, are named
- Jack Lyon (footballer) (1893–1975), English footballer
- John Lyon (commissioner) (born 1948), British Parliamentary Commissioner for Standards (2008–12)
- John Lyon (cricketer) (1951–2010), cricketer for Lancashire
- John Lyon (boxer) (born 1962), English boxer
Other
- John Lyon (born 1948), the real name of singer Southside Johnny
- Jack Lyon (1898–1941), New Zealand politician