Thomas McCarthy (also Tom and Tommy) may refer to:
Academia
Thomas A. McCarthy (born 1940), American professor of philosophy
Thomas J. McCarthy (born 1956), American professor of polymer chemistry at the University of Massachusetts J. Thomas McCarthy, American law professor
Arts and entertainment
Thomas McCarthy (poet) (born 1954), Irish poet
J. Thomas McCarthy (born 1937), American educator, author and attorney
Tom McCarthy (director) (born 1966), American director, screenwriter and actor
Tom McCarthy (novelist) (born 1969), English novelist, writer, and artist
Tom McCarthy (sound editor), Academy Award-winning sound editor
Thomas J. McCarthy (actor)
Sports
Baseball
Tommy McCarthy (baseball) (1863–1922), MLB outfielder
Tom McCarthy (1900s pitcher) (1884–1933), Major League Baseball (MLB) pitcher, 1908–1909 Tom McCarthy (1980s pitcher) (born 1961), MLB pitcher, 1985–1989
Ice hockey
Tommy McCarthy (ice hockey) (1893–1959), NHL player for the Quebec Bulldogs and Hamilton Tigers Tom McCarthy (ice hockey, born 1934) (1934–1992), NHL player for the Red Wings and Bruins Tom McCarthy (ice hockey, born 1960) (1960–2022), NHL player for the North Stars and Bruins
Other sports
Thomas McCarthy (footballer) (1868–?), Welsh footballer
Thomas R. McCarthy (1933–2016), American Thoroughbred racehorse owner & trainer
Tommy McCarthy (hurler) (1906–1968), Irish hurler
Tom McCarthy (sportscaster) (born 1968), sports broadcaster
Tommy McCarthy (boxer) (born 1990), Irish boxer
Others
Thomas McCarthy (Syracuse politician) (1786–1848), businessman and political figure from Syracuse, New York Thomas McCarthy (Canadian politician) (1832–1870), Quebec businessman and political figure Tom McCarthy (trade unionist) (died 1899), British Irish trade union leader Thomas Ignatius McCarthy (1880–1951), architect based in Coalville, Leicestershire Thomas Joseph McCarthy (1905–1986), Canadian Roman Catholic clergyman and bishop