The Teatro Santi Giovanni e Paolo (often written as Teatro SS. Giovanni e Paolo) was a theatre and opera house in Venice located on the Calle della Testa, and takes its name from the nearby Basilica of Santi Giovanni e Paolo, Venice. Built by the Grimani family in 1638, in its heyday it was considered the most beautiful and comfortable theatre in the city. The theatre played an important role in the development of opera and saw the premieres of several works by Francesco Cavalli, as well as Monteverdi's Il ritorno d'Ulisse in patria and L'incoronazione di Poppea.