Ammonihah is the person for whom the Nephite land and city of Ammonihah were named. By Nephite custom, lands, cities, and villages took the name of whoever first possessed them, and the land of Ammonihah was so named (Alma 8:7). The record gives no account of his life, deeds, or descendants; he is known only as the name behind the place.
The city named for him later refused Alma’s preaching, held to the profession of Nehor, and was destroyed in a single day by a Lamanite army in the eleventh year of the judges, after which the site was called Desolation of Nehors (Alma 8–16).