Óláfs saga Tryggvasonar

Óláfs saga Tryggvasonar is the name of several kings' sagas on the life of Óláfr Tryggvason, a 10th-century Norwegian king.

Latin lives of Óláfr Tryggvason were written by Oddr Snorrason and by Gunnlaugr Leifsson; both are now lost, but are thought to have formed the basis of Old Norse sagas on his life including in the collection of texts referred to as Heimskringla by scholars. The longest is Óláfs saga Tryggvasonar en mesta (The Greatest Saga of Óláfr Tryggvason), found in the Flateyjarbók, Bergsbók, and other manuscripts.