Jennison is a surname. Notable people with the surname include:
Abraham Jennison (1804–?), a convict transported to Western Australia Charles R. Jennison (1834–1884), hero of the anti-slavery faction during the Bleeding Kansas Affair and Union colonel during the American Civil War Jennison Heaton (1904–1971), American bobsled and skeleton racer who competed in the late 1920s Jennison Myrie-Williams (born 1988), English footballer who plays as a winger Martin Jennison, former association football player who represented New Zealand at international level Melissa Jennison (born 1982), athlete from Australia Ray Jennison (1910–1990), player in the National Football League Roger Clifton Jennison (1922–2006), radio astronomer at Jodrell Bank under the guidance of Robert Hanbury Brown Silas H. Jennison (1791–1849), American Whig politician
See also Commonwealth of Massachusetts v. Nathaniel Jennison, decisive court case in Massachusetts in 1783 which effectively abolished slavery in that state Joshua Jennison House, historic house at 11 Thornton Street in the Newton Corner village of Newton, Massachusetts