Kuujjuaq, formerly known as Suoivauqaj (ᓲᐃᕙᐅᖃᔾ) and by other names, is a former Hudson's Bay Company outpost at the mouth of the Koksoak River on Ungava Bay that has become the largest northern village in the Nunavik region of Quebec, Canada. It is the administrative capital of the Kativik Regional Government. Its population was 2,668 as of the 2021 census.