Lac-Poulin (French pronunciation: [lak pulɛ̃]) is a village in the Beauce-Sartigan Regional County Municipality in the Chaudière-Appalaches region of Quebec, Canada.

The first settlers Claude Poulin (1614-1687), a carpenter, was born in St Maclou, Rouen, Normandie, France and his wife Jeanne Mercier (1621-1687) was born in Luçon, Eure-et-Loir, Centre, France.

The village is mainly a summer vacation site.

Lac-Poulin was created in 1959 when it split away from Saint-Benoit-Labre.

Annual Report of the Geographic Board of Canada, Volumes 1-10 9-10 Edward VII., A.1910 Page 186 By Geographic Board of Canada