William Dennison or Denison may refer to: William Dennison (academic), 18th-century master of University College, Oxford William Dennison Jr. (1815–1882), American politician, governor of Ohio and U.S. Postmaster General William Dennison (Canadian politician) (1905–1981), mayor of Toronto, Member of Provincial Parliament William Neil Dennison (1841–1904), American Civil War artillery officer William Denison (1804–1871), British colonial official, governor of New South Wales, 1855–1861, and governor of Madras, 1861–1866 William Denison, 1st Earl of Londesborough (1834–1900), British peer and Liberal politician William Denison (cricketer) (1801–1856), English cricketer and cricket official William Clark Denison, American mycologist William Evelyn Denison (1843–1916), British member of parliament for Nottingham, 1874–1880 William Kendall Denison (1869–?), American classicist, and educator William S. Denison (1794–1880), Baptist farmer; benefactor and namesake of Denison University in Ohio William Joseph Denison (1770–1849), English banker and politician William Beckett-Denison (1826–1890), English banker and Conservative politician Doug Dennison (William Douglas Dennison, born 1951), American football player Paymaster Dennison (1954–before 2007), Motswana footballer
See also William Dennison Cary (1808–?), founder of Cary, Illinois