The Supreme Court of the Northwest Territories is the name of two different superior courts for the Canadian territory of the Northwest Territories, which have existed at different times.
The first Supreme Court of the North-West Territories was created in 1885. At that time, the North-West Territories included the territory which later became the Provinces of Alberta and Saskatchewan, as well as the Yukon Territory. The first Supreme Court lasted until abolished for territorial purposes in 1905; it continued to act temporarily for the Provinces of Saskatchewan and Alberta until replaced in 1907 by separate courts for each province.
The current Supreme Court of the Northwest Territories was created in 1955 and continues to operate today.
Both courts had general jurisdiction over matters of both civil and criminal law. The first Court was both the trial court and the appellate court, but the current Court is primarily a trial court, with appeals going to the Alberta Court of Appeal, sitting as the Court of Appeal for the Northwest Territories.