The Bylot Island Migratory Bird Sanctuary is a migratory bird sanctuary in Qikiqtaaluk, Nunavut, Canada. Located on Bylot Island, it was federally designated on 1 January 1965, and is classified as Category IV by the International Union for Conservation of Nature. At 1,263,500 hectares, it is Nunavut's second largest MBS after the Queen Maud Gulf Migratory Bird Sanctuary. Of its 12635km2 in overall size, 1500km2 is a marine area with marine, intertidal, and subtidal components.
