Saqqarlersuup Sullua (old spelling: Sarqardlersûp Suvdlua) is a strait in the Upernavik Archipelago in Avannaata municipality in northwestern Greenland.

The strait is 11 km (6.8 mi) long and less than 4 km (2.5 mi) wide. Located in the northern part of Upernavik Archipelago, it is an inner waterway of Melville Bay, linking Alison Bay in the northeast with the open waters of the former in the west. The strait separates Kiatassuaq Island in the south from Saqqarlersuaq Island in the north.

74°32′30″N 56°56′00″W / 74.54167°N 56.93333°W / 74.54167; -56.93333