David Healy may refer to: David Healy (footballer) (born 1979), Northern Irish footballer David Healy (psychiatrist), Irish psychiatrist David Healy (actor) (1929–1995), American-born, also appeared in many British films and TV shows David Healy (astronomer) (1936–2011), American astrophotographer and asteroid discoverer David Healy, a fictional character in the TV series Roseanne