Ramandu is a fictional character in C. S. Lewis's The Voyage of the Dawn Treader, part of the series The Chronicles of Narnia.

Once a star, he grew too old and descended to the island at the beginning of the end of the world where he lived for some time with his unnamed daughter (of uncertain parentage, but later the wife of Caspian X and Queen of Narnia).

Each morning they would emerge from their home to sing a song during the length of dawn, perhaps causing the sun to rise.

Then, a mass of white birds would fly out from "the valleys of the sun" and settle all over the island.

Each time Ramandu ate a fire-berry he would grow younger, until he was an infant, when he was to become a star again.