St. Mary's is a town in the Canadian province of Newfoundland and Labrador.

Most of the employment in the community is from the local seafood processing plant, operating in summer months.

[3] The town has a Catholic church, a bed & breakfast[4] (which provides the only overnight accommodations in the area), a small pub, and 2 gas stations which also serve as convenience stores.

Point La Haye Beach is a popular picnic location in summer, and is located very near an automated lighthouse and long, natural barachois.

St. Mary's exhibits an oceanic climate (Köppen Cfb) or a humid continental climate (Dfb) depending on the isotherm used.