Sant'Ambrogio may refer to the following entities in Italy:Basilica of Sant'Ambrogio, a church in the Milan Sant'Ambrogio, Florence, a Roman Catholic church in Florence Sant'Ambrogio di Torino, a municipality in the Turin Sant'Ambrogio di Valpolicella, a municipality in Verona, Veneto Sant'Ambrogio sul Garigliano, a municipality in Frosinone, Lazio