Stelio Frati (born in Milan Italy in 1919, died May 14, 2010 ) was an Italian mechanical engineer and aeroplane designer. He graduated from the Politecnico of Milan as a mechanical engineer in 1943, and after teaching aircraft design became a freelance aircraft designer, being responsible for many well known aircraft designs. One of his best known designs is the Falco F8L.
- F.M.1 Passero (1947) - One built by Ditta Movo
- F.4 Rondone - One built by CVV, production batch of nine built by Aeronautica Lombardi and Ambrosini.
- F.5 - One built by Caproni
- F.6 Airone (1954) - One built bu Pasotti
- F.17 Rondone II (1954) - Built by Pasotti
- F.8 Falco (1955) - Built by Aviamilano, Aeromere, Laverda and an amateur build variant by Sequioa
- F.9 Sparviero (1956) - One built by Pasotti
- F.14 Nibbio (1958) - Built by Aviamilano
- F.15 Picchio (1959) - Built by Procaer and General Avia
- F.20 Pegaso (1971) - Built by General Avia
- F.20TP Condor (1983) - One built by General Avia
- F.22 Pinguino (1989) - One built by General Avia
- F.30 Airtruk (Not Built)
- F.250 (1964) - Built by Aviamilano
- F.260 - Built by Aviamilano, licence built by SIAI-Marchetti as the SF.260
- F.400 Cobra (1960) - One built by Procaer
- F.480 (Not Completed)
- SF.600 Canguro (1978) One built by General Avia - licence built production by SIAI-Marchetti
- F.1300 Jet Squalus (1987) - Built by Promavaia
- F.3000 (Not Built)
- F.3500 Sparviero
- "Signor Stelio Frati - His Early Days Archived 2010-12-31 at the Wayback Machine". ultimateitaly.com. Retrieved 23 February 2010.
- "Stelio Frati". seqair.com. July 22, 2010. Retrieved July 22, 2010.
- "General Avia and Stelio Frati aircraft history, performance and specifications". pilotfriend.com. Retrieved 23 February 2010.
- "F.M.1 Passero". Seqair.com. Retrieved 2012-04-26.
- "Frati's New Airplanes". Seqair.com. Retrieved 2012-04-26.