Joseph McCarthy (1908–1957) was a United States Senator and anti-Communist who is the namesake for McCarthyism.

Joseph or Joe McCarthy may also refer to:

Sports

  • Joe McCarthy (catcher) (1881–1937), American baseball catcher
  • Joe McCarthy (baseball manager) (1887–1978), American baseball manager
  • Joe McCarthy (wrestler) (1929–2012), American professional wrestler
  • Joey McCarthy (born 1972), American NASCAR driver
  • Joe McCarthy (outfielder) (born 1994), American baseball outfielder
  • Joe McCarthy (rugby union) (born 2001), American-born Irish rugby union player

Military

  • Joseph J. McCarthy (1911–1996), American Medal of Honor recipient at the Battle of Iwo Jima
  • Joseph Aidan MacCarthy (1914–1995), Irish-born medical officer in the Royal Air Force
  • Joe McCarthy (RCAF officer) (1919–1998), American-born volunteer pilot in the Royal Canadian Air Force who flew in Operation Chastise

Others

  • Joseph Edward McCarthy (1876–1955), American Roman Catholic Bishop of Portland, 1932–1955
  • Joseph W. McCarthy (1884–1965), American architect
  • Joseph McCarthy (lyricist) (1885–1943), American song lyricist and director of ASCAP
  • Joe McCarthy (Irish musician) (born 1936), Irish musician with the showband group The Dixies
  • Joseph G. McCarthy (born 1938), American plastic surgeon