Joan of France, Duchess of Brittany
| Joan of Valois | |
|---|---|
| Duchess consort of Brittany | |
| Tenure | 1 November 1399 – 27 September 1433 |
| Born | 24 January 1391 Château de Melun, Seine-et-Marne, Kingdom of France |
| Died | 27 September 1433 (aged 42) Vannes, Morbihan, Duchy of Brittany |
| Burial | |
| Spouse | |
| Issue | |
| House | Valois |
| Father | Charles VI of France |
| Mother | Isabeau of Bavaria |
Joan of France or Joan of Valois (French: Jeanne; 24 January 1391 – 27 September 1433) was Duchess of Brittany by marriage to John V. She was a daughter of Charles VI of France and Isabeau of Bavaria. She ruled Brittany during the imprisonment of her spouse in 1420.