Saint Bríga was a sixth-century Irish nun who is recognized as the founder of the monastery at Oughter Ard in County Kildare. Identified in historical texts as the daughter of Congal, she served as a superioress over a community of nuns in the province of Leinster. She is often distinguished from other saints named Brigid, though her life is frequently mentioned in the hagiographies of Saint Brigid of Kildare.