Micajah is an old form of Micaiah, from Hebrew, meaning who is like the Lord.
Micajah is a venerable Hebrew name, a variant of Micaiah, meaning "Who is like God?" — a rhetorical question asserting divine incomparability. It shares its root with the more familiar Micah, drawn from the Old Testament prophet whose book rails against injustice and envisions swords beaten into plowshares.
The fuller form Micajah appears in 1 Kings as the name of a fearless prophet who refuses to flatter King Ahab, choosing truth over safety — a resonance that gave the name a certain moral gravity. The name traveled to the American frontier with Puritan and Baptist settlers who combed scripture for weighty, uncommon names. Micajah Crew and other colonial-era bearers left the name scattered across early American land records, particularly in the Carolinas and the Ohio Valley.
It carried a frontier roughness, belonging to the world of homesteaders and circuit preachers, yet always retaining its Biblical solemnity. By the twentieth century, Micajah had retreated into near-obscurity, overshadowed by its shorter cousin Micah. Today it enjoys a quiet revival among parents seeking a Biblical name with genuine historical depth and an uncommon sound. The soft internal syllable — mi-KAY-jah — gives it an unexpectedly melodic quality that belies its ancient roots, making it feel at once archaic and freshly discovered.