thumb|Diane Gabrielle Damas - Musée des Beaux Arts d'AgenDiane Gabrielle Damas (1656–1715) was a French aristocrat.[1]
A daughter of Claude Leonor Damas, Marquis of Thianges and Gabrielle de Rochechouart,[2] she married Philippe Jules Mancini, Duke of Nevers, she was the unofficial lover of king Louis XIV of France in 1676, and was repeatedly the object of rumours of a love affair with the king between 1671 and 1681.