David Wagner may refer to: David L. Wagner (born 1956), American entomologist David Wagner, lead singer of American rock group Crow David Wagner (soccer) (born 1971), German-American soccer player and coach David Wagner (tennis) (born 1974), American wheelchair tennis player David A. Wagner (born 1974), American computer scientist David Wagner (judge) (1826–1902), Justice of the Supreme Court of Missouri David Wagner (mathematics education) (born 1965), Canadian mathematics education researcher