Aquiles Gerste (July 2, 1854 - November 27, 1920) was a Catholic priest, Jesuit, philologist, and linguist who is known for his ethnographic and linguistic studies of the indigenous peoples of Mexico.
Gerst entered the Society of Jesus on October 3, 1873 and was ordained a priest ten years later.
In 1885, he went to Mexico as a missionary and became prefect of a college at Puebla.
He became fluent in French, Latin, Spanish, German and Nahuatl.