Cambridge Bay (Inuinnaqtun: Iqaluktuuttiaq Inuktitut: ᐃᖃᓗᒃᑑᑦᑎᐊᖅ; 2006 population 1,477; UA population 1,147) is a hamlet located on Victoria Island in the Kitikmeot Region of Nunavut, Canada. It is named for Prince Adolphus, Duke of Cambridge, while the traditional Inuinnaqtun name for the area is Ikaluktuutiak (old orthography) or Iqaluktuttiaq (new orthography) meaning "good fishing place".
The traditional language of the area is Inuinnaqtun and is written using the Latin alphabet rather than the syllabics of the Inuktitut writing system. Like Kugluktuk, Bathurst Inlet and Umingmaktok syllabics are rarely seen and used mainly by the Government of Nunavut.
Cambridge Bay is the largest stop for passenger and research vessels traversing the Arctic Ocean's Northwest Passage, a disputed area which the Government of Canada claims are Canadian Internal Waters, while other nations state they are either territorial waters or international waters.