Thomas Harrison

Thomas Harrison may refer to:
 * Thomas Harrison (architect) (1744–1829), English architect and bridge engineer
 * Thomas Harrison (cyclist) (born 1942), Australian cyclist
 * Thomas Harrison (footballer) (1867–1942), English footballer for Aston Villa
 * Thomas Harrison (general) (1823–1891), Confederate States Army brigadier general, district judge
 * Thomas Harrison (minister) (1619–1682), English nonconformist minister, active in Virginia and Ireland
 * Thomas Harrison (ship-owner) (1815–1888), Liverpool ship-owner
 * Thomas Harrison (soldier) (1606–1660), sided with Parliament in the English Civil War
 * Thomas Harrison (translator) (1555–1631), English Puritan scholar and a translator for the King James Version of the Bible
 * Thomas Harrison (surveyor), surveyor in Jamaica
 * T. Alexander Harrison (1853–1930), American artist
 * Thomas Elliot Harrison (1808–1888), civil engineer
 * Thomas Sinclair Harrison (1898–?), South African World War I flying ace
 * Thomas W. Harrison (1856–1935), U.S. Representative from Virginia (second name Walter; had a cousin Thomas Willoughby Harrison (1824–1910) West Virginia judge
 * Tom Harrison (baseball) (1945–2023), baseball pitcher
 * Tom Harrison (cricketer) (born 1971), English cricketer
 * Tom Harrison (musician) (born 1985), British jazz musician
 * Tom Harrison (politician) (1864–1944), Australian politician
 * Tommy Harrison (1892–1931), English boxer of the 1900s-1920s
 * Tommy Harrison (footballer) (born 1974), Scottish footballer for Heart of Midlothian