The SIAI S.12 was an Italian 1910s reconnaissance flying boat, and later Schneider Trophy racer.

It had a deep, contoured forward hull with a slim tapered rear section.

The contest was won by Italy as Great Britain had withdrawn from the race.

Lt. Luigi Bolgna was the only pilot to complete the race in the Savioa S-12, achieving a speed of 107 mph (172.6 km/h).

The aircraft achieved a maximum speed of 138 mph (222 km/h) on 7 January 1921.