Micaiah may refer to any of these:
People[edit]
- 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[edit]
- Micaiah (Fire Emblem), one of the main characters in Fire Emblem: Radiant Dawn