The Ambrosini SAI.2S was a four-seat light aircraft produced in Italy shortly before World War II. It was a low-wing cantilever monoplane of conventional configuration with fixed tailwheel undercarriage. It was produced in small numbers and one example is extant in 2007 preserved at the Caproni museum in Trento. Despite the similar designation this design was unrelated to the earlier SAI.2
Made by SAI Ambrosini.