David-Vital Landry (July 14, 1866 – December 18, 1929) was a doctor, farmer and political figure of Acadian descent in New Brunswick, Canada. He represented Kent County in the Legislative Assembly of New Brunswick from 1908 to 1917 as a Conservative member. He was born in Memramcook, New Brunswick, the son of Vital J. Landry and Mathilde D. Cormier, and was educated at the College of Saint Joseph and the Université Laval. He taught school for a time before he received his degree in medicine. He set up practice in Memramcook and then Bouctouche. In 1896, Landry married Annie-Marie Michaud.