The Otomi (; Spanish: Otomí [otoˈmi]) are an Indigenous people of Mexico inhabiting the central Mexican Plateau (Altiplano) region.
The Otomi are an Indigenous people of the Americas who inhabit a discontinuous territory in central Mexico. They are linguistically related to the rest of the Otomanguean-speaking peoples, whose ancestors have occupied the Trans-Mexican Volcanic Belt for several thousand years. Currently, the Otomi inhabit a fragmented territory ranging from northern Guanajuato, to eastern Michoacán and southeastern Tlaxcala. However, most of them are concentrated in the states of Hidalgo, Mexico and Querétaro. According to the National Institute of Indigenous Peoples of Mexico, the Otomi ethnic group totaled 667,038 people in the Mexican Republic in 2015, making them the fifth largest Indigenous people in the country. Of these, only a little more than half spoke Otomi. In this regard, the Otomi language presents a high degree of internal diversification, so that speakers of one variety often have difficulty understanding those who speak another language. Hence, the names by which the Otomi call themselves are numerous: ñätho (Toluca Valley), hñähñu (Mezquital Valley), ñäñho (Santiago Mexquititlán in southern Querétaro) and ñ'yühü (Northern highlands of Puebla, Pahuatlán) are some of the names the Otomi use to refer to themselves in their own languages, although it is common that, when speaking in Spanish, they use the native Otomi, originating from the Nahuatl.
