Paolo Giordano Orsini was an Italian nobleman, and the first duke of Bracciano from 1560. He was a member of the Roman family of the Orsini.

Bracciano is a small town in the Italian region of Lazio, 30 kilometres northwest of Rome. The town is famous for its volcanic lake and for a particularly well-preserved medieval castle Castello Orsini-Odescalchi. The lake is widely used for sailing and is popular with tourists; the castle has hosted a number of events, especially weddings of actors and singers.