Roger de Valognes (died c. 1141–42) was an Anglo-Norman nobleman who held lands around Benington in Hertfordshire, a tenure that made Roger the feudal baron of Benington. In 1136 he was a supporter of King Stephen of England's seizure of the English throne from Matilda, the daughter of the previous king, Henry I. Roger built Benington Castle and gave lands to Binham Priory in the early part of Stephen's reign, but was dead by 1142. His barony passed to his first two sons in succession and his third son became a royal official in Scotland.