Thomas Irwin may refer to:
Arts and entertainment Thomas Caulfield Irwin (1823–1892), Irish poet, writer and classical scholar Tom Irwin (actor) (born 1956), American film, television, and stage actor Tom Irwin or "Shotgun Tom" Kelly (born 1949), American radio and television personality
Sports Tom Irwin (dual player) (1873–1956), Irish Gaelic footballer, hurler, referee and Gaelic games administrator Tommy Irwin (baseball) (1912–1996), baseball player Tommy Irwin (footballer) (born 1932), Scottish footballer
Others Thomas Irwin (American politician) (1785–1870), U.S. representative from Pennsylvania Thomas Irwin (Canadian politician) (1889–1962), Canadian member of the House of Commons in 1957–1958 Thomas Irwin (trade unionist) (died 1941 or 1942), British trade unionist and politician
See also Tommy Irvin (1929–2017), U.S. official in Georgia Thomas Urwin (disambiguation)