- For the castrato singer, see Pier Francesco Tosi.
Piero Tosi (born April 10, 1927) is an Italian costume designer. His credits include Senso, Bellissima, The Leopard, Yesterday, Today and Tomorrow, Death in Venice, The Night Porter, and La Traviata. He won the David di Donatello for Best Costumes twice, as well as the 50th Anniversary David in 2006. He also won the BAFTA Award for Best Costume Design twice, and has been nominated for the Academy Award for Costume Design five times.