Denis (or Dennis) Barry (or Barrie) may refer to:
- Denis Barry (1929–2003) president of the United States Chess Federation from 1993 to 1996
- Dennis Barrie (born 1947), American museum director
- Denis "Denny" Barry (1883–1923) Irish republican leader
- Denis "Dinny" Barry-Murphy (1903–1973) Irish hurler from Cork
See also[edit]
- Denis Barré (born 1948), Canadian sprint canoer