In the Book of Mormon, a Nephite prophet who was made king over the people in Zarahemla.

Mosiah was warned to flee out of the land of Nephi, Omni 1: 12. He discovered the people of Zarahemla, Omni 1: 14-15. He had the people of Zarahemla taught in his language, Omni 1: 18. He was appointed king of the united peoples, Omni 1: 19. His son, Benjamin, reigned after his death, Omni 1: 23.