Viljo of Malven (pronounced VIHL-ee-oh of MAHL-vehn) was a Tortallan Count in the fifth century of the Human Era. He was married to Gaylyah of Malven. They had at least three sons, of which Ralon of Malven, born around 415 or 416 HE, was the youngest.
He disinherited his son Ralon after he had injured and attempted to rape a girl.
Viljo and his wife were only mentioned in passing in Lioness Rampant in relation to Ralon's history.