Joseph-Alphonse-Omer de Valbelle (1729–1818) was a French aristocrat and military officer.
[2] After his brother's death in 1766, he inherited the marquisates of Tourves, Rians, Montfuron, Bressuire, the Baronetcies of Saint-Symphorien-sur-Coise and Meyrargues, the Countom of Oraison, Valbelle, Sainte-Tulles, Cadarache, Rougiers, Venelles, Peyrolles-en-Provence, Mousteyret, Levens, Reveste, Cucuron, etc.
[1][2] He resided in a hôtel particulier on the Rue du Bac in Paris.
[3] Additionally, he resided at the family castle, Château des Valbelles in Tourves.
[1] He had an affair with La Clairon (1723–1803) and bequeathed her 4,000 French livres after his death.