Ulmo is a character in the Tolkien legendarium and one of the fourteen Valar assigned as the rulers of Arda and a fictional character in Tolkien's legendarium. One of the mightiest of the Ainur, he was second in majesty of the Aratar, after Manwë and Varda.
At several points Ulmo was notable for setting himself apart from his brethren, and also for being the friendliest to the Children of Eru.