The Zeno, also known as Zen, are a patrician family in Venice. Members include:
Apostolo Zeno (1669 - 1750) Venetian poet, librettist, and journalist.
Carlo Zeno (1333 – 1418) Venetian Admiral during War of Chioggia, but also mercenary
Giovanni Battista Zeno (died 1501), Roman Catholic Cardinal since 1468, nephew of Pope Paul II
Nicolò Zen the younger (1515–1565) Venetian Senator and hydraulic engineer
Pietro Zeno, Lord of Andros and Syros
Reniero Zeno (died 1268) 45th Doge of Venice
Zeno brothers: Nicolò (c. 1326–c. 1402) and Antonio (died c. 1403), marine merchants and putative explorers
The family was also the owner of Villa Zeno.