Duke of Aiguillon (French: duc d'Aiguillon) was a title of French nobility in the peerage of France, first created in 1599 by Henry IV of France for Henry of Lorraine, son of Charles, Duke of Mayenne. The title takes its name from the town of Aiguillon.
| From | To | Duke of Aiguillon | Relationship to predecessor |
|---|---|---|---|
| 1599 | 1621 | Henry of Lorraine, Duke of Mayenne (1578-1621) | Son of Charles, Duke of Mayenne, whom he succeeded in 1611 |
| 1634 | 1635 | Antoine de l'Age, duc de Puylaurens (1602–1635) | The Duchy of Aiguillon was granted to him under the title of Duke of Puylaurens |
| 1638 | 1675 | Marie Madeleine de Vignerot du Plessis (1604-1675) | Cardinal Richelieu purchased the Duchy of Aiguillon in 1638 and gave it to Marie Madeleine, the daughter of René de Vignerot and his wife Françoise du Plessis, the sister of Cardinal Richelieu |
| 1675 | 1704 | Thérèse de Vignerot du Plessis (d. 1704) | Niece of Marie Madeleine |
| 1731 | 1750 | Armand-Louis de Vignerot du Plessis (d. 1750) | Grandnephew of Thérèse |
| 1750 | 1788 | Emmanuel-Armand de Vignerot du Plessis-Richelieu (1720-1788) | Son of Armand-Louis |
| 1788 | 1789 | Armand-Désiré de Vignerot du Plessis-Richelieu (1750-1800) | Son of Emmanuel-Armand |
The title of Duke of Aiguillon was suppressed at the time of the French Revolution.