David Arthur Lafortune
 David Arthur Lafortune (October 4 1848 – October 19 1922) was a lawyer and political figure in Quebec. He represented Montcalm from 1909 to 1917 and Jacques Cartier from 1917 to 1922 in the Canadian House of Commons as a Liberal.He was born in Saint-Ésprit Canada East the son of Joachim Lafortune and Félicité Beaupré and was educated at the Collège de L'Assomption and the Université Laval.