Maria Izildinha "Zizi" Possi (Portuguese pronunciation: [ziˈzi ˈpɔsi], born March 28, 1956) is a Brazilian singer from São Paulo, the daughter of Italian immigrants. She sings in Portuguese, English, and Italian. In 2007, she sang at the opening of the Military World Games, alongside Toquinho, Jorge Aragão, Alcione and the Paralamas do Sucesso band.
Possi is openly bisexual. She is the mother of another famous Brazilian singer, Luiza Possi.