The Supreme Court of the Commonwealth of the Northern Mariana Islands, 1 CMC § 3101,[2] is the highest court of the United States Commonwealth of the Northern Mariana Islands (CNMI), exercising civil and criminal appellate jurisdiction over commonwealth law matters.

It should not be confused with the District Court for the Northern Mariana Islands, which exercises jurisdiction over federal law.

[1] This was allowed under the terms of the Covenant to Establish a Commonwealth of the Northern Mariana Islands in Political Union with the United States of America, § 402(c), Act of Mar.

Prior to the creation of the Supreme Court, the Covenant provided that the District Court for the NMI would exercise original jurisdiction over federal law matters and appellate jurisdiction over commonwealth law matters.

[3] The court typically hears cases at the House of Justice (Chamorro: Guma’ Hustisia; Carolinian: Iimwal Aweewe) in Susupe; however, some cases are also heard at the Kotten Tinian in San Jose and the Rota Centron Hustisia in Sinapalo.