In the Book of Mormon, Ammon (/ˈæmən/)[1] is a Mulekite descendant and leader of a Nephite expedition from Zarahemla, sent to discover the fate of Zeniff and his people (who had not been in contact for 75 years).

Zeniff and his followers left Zarahemla and travelled to Nephi, their ancestral home, which was then in the possession of the Lamanites.

[3] Ammon and his men discover the descendants of the people of Zeniff, who had successfully colonized Nephi but were then enslaved by the Lamanites.

Ammon teaches the people of Limhi the famous sermon of King Benjamin and helps convert them to the gospel.

Ammon, Gideon, and King Limhi conspire to escape from the Lamanites by making the guards drunk.