Thomas Monaghan

Thomas Monaghan may refer to:
 * Thomas Monaghan (VC), British recipient of the Victoria Cross
 * Thomas J. Monaghan (politician) (1914–1992), American politician
 * Thomas J. Monaghan (attorney), American attorney
 * Thomas Monaghan (hurler) (born 1997), Irish hurler
 * Tom Monaghan (born 1937), American entrepreneur
 * Tom Monaghan (dual player) (born 1944), Irish hurler, Gaelic footballer and coach
 * Tommy Monaghan, a fictional super powered Hitman in DC Comics