Alessandro Farnese (10 January 1635 – 18 February 1689) was an Italian military leader who was governor of the Habsburg Netherlands from 1678 to 1682.

He is not to be confused with his better-known great-grandfather Alexander Farnese, Duke of Parma.

His elder brother Ranuccio II was the sixth duke of Parma and Piacenza .

He was general in the army of Venice, fighting the Turks, and later admiral in the Spanish Navy.

By his mistress Maria de Lao y Carillo had the following children: