Some sources indicate that the word Actopan comes from the Otomi language, the INAFED in the Encyclopedia of the Municipalities and Delegations of Mexico in its page on Actopan, Hidalgo indicates the etymology of the word comes from Otomi; but in the page of Actopan, Veracruz it indicates that the etymology comes from Nahuatl. Enrique Rivas Paniagua, in the book Lo que el viento nos dejó: hojas del turruño hidalguense, points out that the name of no municipality in Hidalgo has roots in Otomi.
