Thomas Long may refer to:
Politicians Thomas Long (Ontario politician) (1836–1920), Ontario merchant and political figure Thomas Long (fl.1407–1437), MP for Rye Thomas Long of Draycot (c. 1451–1508), English knight and politician Thomas Long (died 1593), MP for Westbury Thomas Long (captain), American whaler Thomas W. Long (1929–2024), American politician in the New Jersey General Assembly Thomas Warren Long (1839–1917), African Methodist Episcopal minister and politician in Florida
Others Thomas Long (writer) (1621–1707), English clergyman and controversialist Thomas J. Long (c. 1910–1993), American accountant and businessman who co-founded Longs Drugs Thomas G. Long, Bandy Professor of Preaching at Candler School of Theology at Emory University Thomas Long (baseball) (1860–1914), baseball player
See also Tom Long (disambiguation)