John Jennings may refer to:
- John Edward Jennings (1906–1973), American historical novelist
- John Jennings (American politician) (1880–1956), U.S. Representative from Tennessee, 1939–1951
- John Jennings (Australian politician) (1878–1968), federal member for South Sydney and then Watson in the 1930s
- John Jennings (biologist), president of the Royal Society of South Australia, 2008–2010
- John Jennings (businessman) (born 1937), UK businessman, Chancellor of Loughborough University, 2003–2010
- John Jennings (clergyman) (1814–1876), Canadian Presbyterian minister
- John Jennings (footballer) (1902–1997), British football player for Middlesbrough
- John Jennings (physician) (fl. 18th century), Irish doctor
- John Jennings (Royal Navy officer) (1664–1743), British admiral
- John Jennings (soldier), British soldier who played a major part in the Battle of Carrickfergus (1760)
- John Jennings (South Australian politician), member for the electoral district of Ross Smith, 1970–1977
- John Jennings (St Albans MP) (died 1642), English Member of Parliament
- John Jennings (tutor) (1688–1723), English dissenting tutor
- John Jennings (NASCAR driver), participated in 1970 Greenville 200
- John Jennings (UK politician) (1903–1990), British Conservative Party politician
- John Jennings (musician), American guitarist, multi-instrumentalist and producer
- John Jennings, bassist for British band The Ruts
Famous quotes containing the words john and/or jennings:
“Could it be that those who were reared in the postwar years really were spoiled, as we used to hear? Did a child-centered generation, raised in depression and war, produce a self-centered generation that resents children and parenthood?”
—C. John Sommerville (20th century)
“Chastity faces them, a destination
For which their whole lives were a preparation.”
—Elizabeth Jennings (b. 1926)