Jennings is a surname of early medieval English origin (also the Anglicised version of the Irish surnames Mac Sheóinín or MacJonin). Notable people with the surname include:
Adam Jennings, English actor and film directorAdam Jennings (American football), American football playerAlex Jennings, British actorAsa Jennings, American who commanded the evacuation of refugees after the Great Fire of SmyrnaBilly Jennings (born 1952), English footballerBilly Jennings (Welsh footballer) (1893–1968), Welsh footballerBrandon Jennings, American basketball playerBrian Jennings, American football playerBryant Jennings, American boxerCharles Edward Jennings de Kilmaine (1751–1799), Irish-born French generalCharles Jennings (journalist) (1908–1973), Canadian journalistChristine Jennings, American politicianClaudia Jennings, American model and actressClyde Jennings (1916–2006), Florida philatelistEdward Jennings (MP) (c1647–1725), English politician, MP for East Looe 1713–15Edward Jennings (VC) (1820–1889), Irish recipient of the Victoria CrossEdward Harrington Jennings (born 1937), tenth president of Ohio State UniversityEdward L. Jennings (born 1968), Florida politicianEdward Jennings (rower) (1898–1975), American rowerElizabeth Jennings, English poetElizabeth Jennings Graham (1830–1901), American black civil rights activist and teacherErnie Jennings (born 1949), American football playerFrancis Jennings, American historianGary Jennings, American authorGeorge Jennings, pioneering British sanitary engineerGerald H. Jennings, ichthyologist and authorGreg Jennings, American football playerHenry Jennings, British privateerHenry Constantine Jennings, English antiquarianHerbert Spencer Jennings, zoologist, geneticist and eugenicistHughie Jennings, American baseball playerHumphrey Jennings (1907–1950), English filmmakerJ. B. Jennings, American politicianJames Jennings (born 1960), Irish philosopherJeremy Jennings, English political theoristJesse D. Jennings (1909–1997), American archaeologistJohn Jennings (disambiguation), several peopleJonas Jennings, American football playerJonathan Jennings, first governor of IndianaJ. T. W. Jennings, 20th century architectKeith Jennings (American football) (born 1966), American football playerKeith Jennings (basketball) (born 1968), American basketball player and coachKeith R. Jennings (born 1932), English chemistKeith Jennings (cricketer) (born 1953), English cricketerKen Jennings, holder of longest winning streak on the game show Jeopardy!Kenneth Jennings, composer and director of the St. Olaf ChoirLa Vinia Delois Jennings, American literary scholarLyfe Jennings, American musicianLynn Jennings, American distance runnerM. D. Jennings, American football playerMarlene Jennings, Canadian politicianMason Jennings, American musicianMichael Jennings (disambiguation), several peopleMorley Jennings (1890–1985), American college sports coachProfessor Nick Jennings, Regius Professor of computer scienceOwen Jennings, New Zealand politicianPat Jennings, Northern Irish footballerPatrick Jennings (1831–1897), Australian politicianPaul Jennings (Australian author) (born 1943), Australian children's authorPaul Jennings (UK author) (1918–1989), English humoristPaul Jennings (slave) (1799–1874), American slave owned by President James MadisonPhilip Jennings (The Americans), fictional character in the 2010s American television drama series The AmericansPhilip Jennings (Queenborough MP) (c1679–1740), English lawyer and politician, MP for Queenborough 1715–22Sir Philip Jennings-Clerke, 1st Baronet (c1722–January 1788), known as Philip Jennings until the 1760s, MP for Totnes 1768–88Peter Jennings (1938–2005), ABC News anchor and newsmanRichard Jennings (c1619–1668), British politicianRobert Yewdall Jennings (1913–2004), English juristSarah Jennings (1660–1744), 1st Duchess of MarlboroughShooter Jennings, American musicianStanford Jennings, American football playerSteve Jennings (footballer) (born 1984), English footballerStephen Arthur Jennings, Canadian mathematicianTed Jennings, (born 1990), American football playerTheodore Jennings, American authorTim Jennings, American football playerTom Jennings, creator of FidoNetToni Jennings, American politicianWaylon Jennings (1937–2002), American country music singerWill Jennings (born 1944), American songwriterWilliam Dale Jennings, American authorWilliam M. Jennings (1920–1981), American businessman and hockey team ownerWilliam Nicholson Jennings (1860–1946), American photographerWilliam Pat Jennings (1919–1994), U.S. Representative from VirginiaWilliam Sherman Jennings (1863–1920), governor of Florida