Oto-Manguean languages (also
Otomanguean) are a large family comprising several subfamilies of
Native American languages. All of the Oto-Manguean languages that are now spoken are indigenous to
Mexico, but the Manguean branch of the family, which is now
extinct, was spoken as far south as
Nicaragua and
Costa Rica. Oto-Manguean is widely viewed as a proven language family. However, this status has been recently challenged (Brown 2015).