Ikertooq Fjord (old spelling: Ikertôq) is a 55 km (34 mi) long fjord in the Qeqqata municipality in western Greenland. The fjord empties into Davis Strait 21 km (13 mi) south of Sisimiut.
The upper part of the fjord, a confluence of three tributary inlets at approximately 66°53′20″N 52°32′00″W / 66.88889°N 52.53333°W is called Suluppaavarsiorfik (old spelling: Sulugpâvarsiorfik). The tributary bays, from south to north, are: Avalleq, Akulleq (the innermost, main arm at approximately 66°55′50″N 52°16′00″W / 66.93056°N 52.26667°W), and Maligiaq. Itinneq, an outflow river from the large, latitudinal Tasersuaq lake, empties into the northern inlet.
The fjord initially flows westward, to then turn west-south-west between the mainland peninsula in the south, and Sarfannguit Island in the north, widening considerably at its mouth at approximately 66°46′N 53°27′W / 66.767°N 53.450°W, where it empties into Davis Strait. The fjord is unusual in that it connects through a very narrow waterway to the head of the narrower Amerloq Fjord near the village of Sarfannguit.