Poston may refer to:

Events Murder of Ryan Poston, a 2012 crime that occurred in Kentucky

People Adele Poston (1884–1979), American nurse Albert B. Poston (1855–1902), American teacher, preacher, and politician in Mississippi Bryan A. Poston (1924–2009), American politician from Louisiana Charles Debrille Poston (1825–1902), American politician from Arizona Charles M. Poston (1898–1968), American politician from Louisiana Dudley L. Poston Jr. (born 1940), American academic Elizabeth Poston (1905–1987), English composer Ersa Poston (1921–2009), American anti-poverty activist and civil service reformer Freddie L. Poston (1925–2016), American lieutenant general Henry Poston (1849/50–1908), British architect J. T. Poston (born 1993), American golfer Jim Poston (1945–2007), governor of the Turks and Caicos Islands John Poston (British Army officer) (1919–1945), British cavalry officer John Poston (politician) (1958–2023), American politician from Minnesota Lucilla Poston, British physiologist and academic Lurie Poston, American actor and singer McCracken Poston (born 1959), American criminal defense lawyer Ralph Poston (1923–2009), American politician from Florida Ramsey R. Poston (born 1966), American PR and crisis communications expert Robert Lincoln Poston (1891–1924), American journalist and editor Robert S. Poston (born 1967), American surgeon Ted Poston (1906–1974), American journalist and author Tim Poston (1945–2017), British mathematician Tom Poston (1921–2007), American actor

Places Poston, Arizona, United States Poston War Relocation Center, a World War II era internment camp