In the Book of Mormon, Lemuel (Hebrew למואל Ləmûʾēl; BoM Arabic لموئيل Lamūīl) was the second eldest of Lehi's sons, and the brother of Laman and Nephi. Both he and Laman were the principal ancestors of the Lamanites. Lemuel's direct seed are also sometimes referred to as Lemuelites (BoM Arabic لموئيليين Lamūīliyyīn).

Lemuel is a hebrew name, meaning "Devoted to God".