Glenstorm is a supporting character in the 1951 novel The Chronicles of Narnia: Prince Caspian and film adaptations of the same name.
He is one of the Old Narnians who was a prophet and the general of Caspian's army. He and his three sons assisted Caspian and the Pevensie siblings in defeating the Telmarines led by Caspian's evil uncle, Miraz. He was a skilled swordsman married to Windmane and father of three sons, Suncloud, Ironhoof and Rainstone.