MacCarthy Reagh was a prominent Irish noble family that emerged in the 12th century. They were part of the larger MacCarthy clan, which played a significant role in the history of County Kerry and County Cork. The family was known for its influence and power in the region, often engaging in conflicts with neighboring clans and English settlers. The title of MacCarthy Reagh translates to "the MacCarthy of the Ragh," referring to their territory. The family produced several notable leaders and was involved in various historical events, including the struggle against English rule in Ireland. Their legacy is still remembered in Irish history and culture.