Malloy is a surname of Irish origin. The name may refer to:
- Dan Malloy (b. 1955), American politician, current Governor of Connecticut
- Danny Malloy (footballer) (b. 1930), former Scottish footballer
- Doug Malloy, pseudonym of Richard Simonton, American business executive and body piercer
- Edward Malloy (b. 1941), American priest, president of the University of Notre Dame 1987–2005
- Jim Malloy (1935–1972), American Indy 500 racecar driver
- Kady Malloy, contestant on the seventh season of American Idol
- Larkin Malloy (b. 1954), American actor and model
- The Malloys, American music video and film directors Emmett Malloy and Brendan Malloy
- Michael Malloy (1873–1933), New York City vagrant; survived several attempts to murder him
- Mike Malloy (contemporary), American radio broadcaster in Atlanta, Georgia
- The Malloy Family, the sitcom Unhappily Ever After
- Matt Malloy Mr. Basketball (2007), South Dakota
- Dannel Malloy Governor of Connecticut
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