Central Otomi (San Felipe Otomi and Otomi del estado de México) is a Native American language spoken by 10,000 in San Felipe Santiago and in several neighboring towns in the Mexican state of Mexico, such as Chapa de Mota and Jilotepec de Abasolo. Also called 'State of Mexico Otomi', there are other varieties spoken in the state, such as Temoaya Otomi. The autonym is Hñatho or Hñotho.^[2]

• Lastra, Yolanda (2006). Los Otomies – Su lengua y su historia (in Spanish). Universidad Nacional Autonoma de México, Instituto de investigaciones Antropológicas. ISBN 9789703233885.
• Wright Carr, David Charles (2005). "Precisiones sobre el término "otomí"" (PDF). Arqueología Mexicana (in Spanish). 13 (73): 19. Archived from the original (PDF) on November 8, 2005. Retrieved 2006-12-06.