Mithrandir is the name by which Gandalf is called in J.R.R. Tolkien’s The Lord of the Rings.
Mithrandir is a Sindarin name meaning “Grey Pilgrim” or “Grey Wanderer.” The Elves use it for Gandalf, reflecting his long journeys through Middle-earth and his role as a counselor rather than a ruler. Men and Hobbits generally know him as Gandalf, while he has other names in different languages.
Gandalf is one of the Istari, spirits sent to Middle-earth in the Third Age to oppose Sauron. He first appears as Gandalf the Grey and later returns as Gandalf the White after his confrontation with the Balrog in Moria.
Mithrandir is sometimes confused with Gandalf’s other names, such as Olórin, his name in Valinor, or Tharkûn, the name used by the Dwarves. These names belong to different languages and contexts.