William, Viscount of Limoges
| William de Châtillon | |
|---|---|
| Viscount of Limoges | |
| Reign | 1404 – 1455 |
| Predecessor | John |
| Successor | Frances |
| Died | 1455 |
| Spouse | Isabelle de la Tour d'Auvergne |
| Issue | Frances |
| House | House of Châtillon |
| Father | John I, Count of Penthièvre |
| Mother | Margaret de Clisson |
William (died 1455) was Seigneur de Avesnes and Viscount of Limoges from 1404 until his death. He was also briefly Count of Périgord following the death of his brother John II, Count of Penthièvre, in 1454.