David Gallagher (disambiguation)
David Gallagher (born 1985) is an American film and television actor.
David Gallagher may also refer to:
- David Gallagher (footballer) (born 1980), former Australian rules footballer
- David Gallagher (Gaelic footballer) (born 1980), Meath Gaelic footballer
- Dave Gallagher (born 1960), baseball player
- Dave Gallagher (American football) (born 1952), former American football defensive tackle