|Location||Western Prince Regent Inlet|
|River sources||Creswell River|
|Surface area||2,178 km2 (841 sq mi)|
Creswell Bay is an Arctic waterway in Qikiqtaaluk Region, Nunavut, Canada. It is an arm of western Prince Regent Inlet in eastern Somerset Island. Its northeastern landmark, Fury Point, is approximately 100 km (62 mi) west of Baffin Island.
Creswell Bay is large and almost semicircular. Its habitat is characterized by tundra, rivers, streams, mud, saline sand flats, a freshwater lake, open sea, inlets, coastal marine features, coastal cliffs, and rocky marine shores. The elevation is 0 m (0 ft) above sea level.
The bay is a Canadian Important Bird Area (#NU062). Notable bird species include grey plover, greater snow goose, king eider, long-tailed duck, red phalarope, sanderling, and white-rumped sandpiper. Arctic char enter the bay in the late summer and swim up the Union River to Stanwell-Fletcher Lake, where they over-winter. The large numbers of char attract beluga whales and narwhals which feed on the char.