Red Branch

In the Ulster Cycle, the Red Branch (Old Irish: Cráebruad; modern Irish: Craobh Rua(dh)) was the primary residence of Conchobar mac Nessa, King of Ulster, situated in his capital of Emain Macha. It was one of three royal halls in Emain Macha, the others being Cráebderg ("ruddy branch"), containing Conchobar's treasury and the heads of his foes, and Téte Brec ("twinkling hoard"), containing weapons and armour. The name apparently derived from a large painted beam running across the ceiling. It may be echoed in Creeveroe, the name of a modern-day townland near the site of Emain Macha.

Conchobar's followers were sometimes known as the Curaidh na Craobhruaidhe or "Red Branch Knights" in reference to the hall.