| François Victor Le Tonnelier de Breteuil | |
| Honorific Suffix: | Marquis de Fontenay-Trésigny, Marquis de Breteuil |
| Office: | Secretary of State for War |
| Predecessor: | Claude le Blanc |
| Term: | 4 July 1723 – 16 June 1726 |
| Successor: | Claude le Blanc |
| Birth Date: | 17 April 1686 |
| Birth Place: | Kingdom of France |
| Death Place: | Issy-les-Moulineaux, Isle-de-France, Kingdom of France |
| Predecessor1: | Nicolas Prosper Bauyn d'Angervilliers |
| Successor1: | Marc-Pierre de Voyer de Paulmy d'Argenson |
| Term1: | 20 February 1740 – 7 January 1743† |
| Monarch1: | Louis XV |
François Victor Le Tonnelier de Breteuil, Marquis de Fontenay-Trésigny, Marquis de Breteuil (17 April 1686 – 7 January 1743 in Issy) was a French nobleman and a minister for war twice under Louis XV. He was also Chancellor, Keeper of the Seals of France and commander, Provost and Grand-master of ceremonies to the Order of the Holy Spirit (1721–1743).
Born as a member of the Le Tonnelier de Breteuil family, he was the younger son of Marquis François Le Tonnelier de Breteuil (1638–1705) and his wife, Anne de Calonne de Courtebourne (1654-1737).[1] He was the Marquis of Fontenay-Trésigny, sire de Villebert, seigneur de Breteuil, du Mesnil-Chassemartin, des Chapelles, de Villenevotte et de Palaiseau, baron de Boitron et de Preuilly.[2] He died on 7 January 1743 in Issy-les-Moulineaux, Paris, France.