Mishma was one of the twelve sons of Ishmael, Abraham's son through Hagar. He became the ancestor of one of the twelve Ishmaelite tribes. His name is also mentioned in the genealogy of Simeon in 1 Chronicles, where a descendant line with the same name appears.
Mishma is listed as one of the twelve sons of Ishmael, who became fathers of twelve tribes, in accordance with God's promise to Abraham that Ishmael would become a great nation.
A person named Mishma appears in the tribal genealogy of Simeon as a son of Hammuel, which may suggest a connection or naming tradition between the tribes.
20As for Ishmael, I have heard you. I will surely bless him; I will make him fruitful and multiply him greatly. He will father twelve princes, and I will make him into a great nation.
18His descendants settled from Havilah as far as Shur, near the border of Egypt, in the direction of Asshur; and they lived in hostility toward all their kindred.