Cartwright is a community located on the eastern side of the entrance to Sandwich Bay, along the southern coast of Labrador in the province of Newfoundland and Labrador, Canada. It was incorporated in 1956.

Labrador is a geographic and cultural region within the Canadian province of Newfoundland and Labrador. It is the primarily continental portion of the province and constitutes 71% of the province's area but is home to only 6% of its population. It is separated from the island of Newfoundland by the Strait of Belle Isle. It is the largest and northernmost geographical region in the four Atlantic provinces.