The Churchill River, formerly known by other names, is a river in Newfoundland and Labrador, Canada. It flows east from the Smallwood Reservoir into the Atlantic Ocean via Lake Melville. The river is 856 km (532 mi) long and drains an area of 79,800 km2 (30,800 sq mi), making it the longest river in Atlantic Canada.

Labrador ( LAB-rə-dor) 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 the province's population. It is separated from the island of Newfoundland by the Strait of Belle Isle. It is the largest and northernmost geographical region in Atlantic Canada.

Labrador occupies most of the eastern part of the Labrador Peninsula. It is bordered to the west and the south by the Canadian province of Quebec. Labrador also shares a small land border with the Canadian territory of Nunavut on Killiniq Island.

The aboriginal peoples of Labrador include the Northern Inuit of Nunatsiavut, the Southern Inuit-Métis of NunatuKavut, and the Innu of Nitassinan.