Josce de Dinan (died 1166) was an Anglo-Norman nobleman who lived during and after the civil war between King Stephen of England and his cousin Matilda over the throne of England. He was a landholder in the Welsh Marches when he was married by Stephen to the widow of Pain fitzJohn, a union that gave Josce control of Ludlow Castle. Control of the castle was contested by other noblemen, and the resulting warfare between the nobles forms the background to a late medieval romance known as "Fouke le Fitz Waryn", which is mainly concerned with the actions of Josce's grandson, but also includes some material on Josce's lifetime. Josce eventually lost control of Ludlow and was granted lands in compensation by Matilda and her son, King Henry II of England, who succeeded Stephen in 1154.