Franklin Bay is a large inlet in the Northwest Territories, Canada.

It is a southern arm of the Amundsen Gulf, southeastern Beaufort Sea.

The Parry Peninsula is to the east, and its southern area is called Langton Bay.

[4] Based on hearsay rather than exploration, Émile Petitot, a French Missionary Oblate and a notable Canadian northwest cartographer, ethnologist, and geographer charted the Hornaday River's mouth at Franklin Bay, instead of Darnley Bay in his flawed 1875 maps and account.

[5] Langton Bay was the base of operations for the three-year expedition, 1909 to 1912, of Arctic explorers Vilhjalmur Stefansson and Rudolph Anderson[6]