Englynion Gwydion is the name sometimes used to refer to a series of three englyn (Welsh plural englynion) composed by Gwydion to call to him the wounded Lleu Llaw Gyffes after Lleu was struck by a poisoned spear by Gronw Pebr which ultimately turns him into an eagle. It appears in the fourth branch of the Mabinogi, the tale of Math fab Mathonwy.