The Northern Mariana Islands, officially the Commonwealth of the Northern Mariana Islands, is an unincorporated territory and commonwealth of the United States consisting of 14 islands in the northwestern Pacific Ocean. The CNMI includes the 14 northernmost islands in the Mariana Archipelago; the southernmost island, Guam, is a separate U.S. territory. The Northern Mariana Islands were listed by the United Nations as a non-self governing territory until 1990.

Chamorro is an Austronesian language spoken by about 58,000 people, numbering about 25,800 on Guam and about 32,200 in the Northern Mariana Islands and elsewhere. It is the historic native language of the Chamorro people, who are indigenous to the Mariana Islands, although it is less commonly spoken today than in the past. Chamorro has three distinct dialects: Guamanian, Rotanese, and that in the other Northern Mariana Islands (NMI).