'''Thomas''', '''Tom''' or '''Tommy Callaghan''' may refer to:
*Tommy Callaghan (footballer, born 1886) (1886–1917), English footballer *Tom Callaghan (active 1925–33), Scottish footballer who played for Scottish, Irish and English Football Leagues *Thomas Patrick Callaghan (born 1938), Irish long-distance runner *Tommy Callaghan (1945–2024), Scottish footballer who played for Celtic, Dunfermline Athletic, and Clydebank *Thomas Callaghan (judge) (1815–1863), Australian judge of the District Court of New South Wales *Thomas Callaghan, an alias of burglar and author Jack Black (1871–1932)
==See also== *Thomas O'Callaghan (1845–1931), Australian police officer *Tom Callahan (1921–1996), American basketball player
{{human name disambiguation|Callaghan, Thomas}}