In the works of J. R. R. Tolkien, the fictional Sindar (meaning Grey People, singular Sinda, although the latter term was not generally used by Tolkien) are Elves of Telerin descent. They are also known as the Grey Elves. Their language is Sindarin. The King of Doriath, Elu Thingol (Elwë) was the King of the Sindar.