Micaiah may refer to any of these:
People Micaiah, the son of Imlah Micaiah Towgood, an author Micaiah Diondae "Dion" Glover, an American professional basketball player Michaiah Shobek (born James Michael Shoffner), American serial killer
Fictional characters Micaiah (Fire Emblem), one of the main characters in Fire Emblem: Radiant Dawn
See also Micajah Micah (disambiguation)