Walda was the twelfth King of Rohan.
Walda had served in his father's army fighting off the Orcs which had attempted to invade Rohan during Brytta's reign, and at the time of his coronation it was believed Rohan had been freed of them. However, some Orcs remained, and in T.A. 2851 after ruling just nine years he was killed by an Orc in Dunharrow. His son Folca succeeded and avenged him.