Teneu was a sixth-century Brittonic princess from the kingdom of Gododdin, traditionally identified as the mother of Saint Mungo. According to legend, she survived being thrown from Traprain Law by her father after being assaulted by the Welsh prince Owain mab Urien. Following her survival, she was sent to live with the community of Saint Serf at Culross, where she raised her son. She is remembered as a significant figure in early British Christian tradition and is considered a co-patron of Glasgow alongside her son.