Thomas Gallagher

Thomas Gallagher may refer to:

Politics

 * Thomas Gallagher (Illinois politician) (1850–1930), U.S. Representative from Illinois
 * Thomas Gallagher (mayor) (1883–1967), mayor of Pittsburgh
 * Tom Gallagher (born 1944), Florida politician
 * Tom Gallagher (Massachusetts politician), member of the Massachusetts House of Representatives
 * Tommy Gallagher (politician) (born 1942), Irish nationalist

Other

 * Thomas C. Gallagher, chief executive officer of the Genuine Parts Company
 * Thomas F. Gallagher (1897–1985), Minnesota Supreme Court judge, 1943–1967
 * Thomas Gerard Gallagher (born 1954), British professor
 * Tommy Gallagher (rugby league) (born 1983), rugby league player for Leigh Centurions
 * Tommy Gallagher (trainer), boxing trainer seen on TV show The Contender
 * Tom Gallagher (diplomat) (1940–2018), American diplomat
 * Thomas Gallagher (swimmer) (born 1999), Australian Paralympic swimmer
 * Thomas Gallagher (writer) (1918–1992), American writer