The Baffin Mountains are a mountain range running along the northeastern coast of Baffin Island and Bylot Island, Nunavut, Canada. The ice-capped mountains are part of the Arctic Cordillera and have some of the highest peaks of eastern North America, reaching a height of 1,525–2,146 metres (5,003–7,041 ft) above sea level. While they are separated by bodies of water to make Baffin Island, they are closely related to the other mountain ranges that make the much larger Arctic Cordillera mountain range.

Baffin Island, in the Canadian territory of Nunavut, is the largest island in Canada, the second largest island in the Americas, and the fifth-largest island in the world. Its area is 507,451 km2 (195,928 sq mi) with a population density of 0.03/km2; the population was 13,039 according to the 2021 Canadian census; and it is located at 68°N 70°W. It also contains the city of Iqaluit, which is the capital of Nunavut.