Thomas or Tom Montgomery may refer to:
Thomas Montgomery (Irish politician) (1700–1761), Irish politician Thomas Montgomery (American politician) (1779–1828), U.S. representative from Kentucky Thomas Montgomery (innkeeper) (1790–1877), Upper Canada militia officer and innkeeper (Montgomery's Inn) in modern-day Etobicoke Thomas Harrison Montgomery (1830–1905), American businessman and historian Thomas Hartley Montgomery (1842–1873), Royal Irish Constabulary officer and convicted murderer Thomas Lynch Montgomery (1862–1929), American librarian Thomas Harrison Montgomery Jr. (1873–1912), American zoologist Thomas M. Montgomery (born 1941), United States Army general Thomas Montgomery, American murderer, subject of the 2009 documentary film Talhotblond Tom Montgomery, Welsh politician
See also Thomas George Montgomerie (1830–1878), British surveyor