Piers Langtoft (died ~1307) was a chronicler who originated from Langtoft[?] in Yorkshire. He was an Augustinian monk at Bridlington Priory[?], and wrote his own history of England in verse. The period covered is up to the death of King Edward I of England. It is thanks to Langtoft that we know the fate of Gwenllian, daughter of Llywelyn the Last of Wales.