The Oratorio di San Protaso ("Oratory of Saint Protasius"; Lombard: Oratori de San Protas [uraˈtɔri de ˌsãː pruˈtaːs], colloquially known as Gesetta di Lusert [dʒeˈzɛta di lyˈzɛrt] "Little Church of the Lizards") is a church in via Lorenteggio, Milan, Lombardy.