Louis-Pierre Thury (French pronunciation: [lwi pjɛʁ tyʁi]; c. 1644, Notre Dame de Breuil en Auge (Department of Calvados), France-June 3, 1699, Halifax, Nova Scotia) was a French missionary (secular priest) who was sent to North America during the time of King William's War.
In 1684, when the institution wanted to found a missionary in the French colony of Acadia, Father François de Laval sent him on an observation tour from Percé to Port Royal, and chose to settle at Miramichi.
He later took part in the attack against Pescadouet (Oyster River), and was present with Joseph Robineau de Villebon and a party of Abenakis at the capture of Pemaquid by Pierre Le Moyne d'Iberville in 1696.
In 1698, he was assigned to found a mission between Shubenacadie and Chibouctou to group the Micmac people, but died before this project could be undertaken.
At his arrival at Chebucto on the ship La Royale Paix, three Mi'kmaq chiefs greeted him in canoes, declared themselves Christians and showed him Father Thury's grave.