Buile Shuibhne (Irish pronunciation: , The Madness of Suibhne or Suibhne's Frenzy; alternate spellings: Shuibni, Suibne) is the final installment of a three-text cycle in medieval Irish literature: Fled Dúin na nGéd [The Feast of Dun na nGéd], Cath Maige Rátha [The Battle of Mag Rath] and Buile Suibhne.