The 12th Syracuse Grand Prix was a motor race, run to Formula One rules, held on 25 April 1963 at Syracuse Circuit, Sicily. The race was run over 56 laps of the circuit, and was won easily by Swiss driver Jo Siffert in a Lotus 24.

Pos	Driver	Entrant	Constructor	Time/Retired	Grid
1	Jo Siffert	Ecurie Filipinetti	Lotus-BRM	2.06:25.4	1
2	Carel Godin de Beaufort	Ecurie Maarsbergen	Porsche	+ 1:20.6 s	4
3	Carlo Abate	Scuderia Centro Sud	Cooper-Maserati	+ 1 Lap	5
4	Bob Anderson	DW Racing Enterprises	Lola-Climax	+ 4 Laps	2
5	Jo Bonnier	Rob Walker Racing Team	Lotus-Climax	+ 7 Laps	3
6	Gaetano Starrabba	Gaetano Starrabba	Lotus-Maserati	+ 7 Laps	10
Ret	Günther Seiffert	Autosport Team Wolfgang Seidel	Lotus-BRM	Gearbox casing	9
Ret	Bernard Collomb	Bernard Collomb	Lotus-Climax	Front wishbone	7
Ret	Lorenzo Bandini	Scuderia Centro Sud	Cooper-Maserati	Oil pipe	6
Ret	André Wicky	André Wicky	Cooper-Climax	Engine	8
WD	Phil Hill	Ecurie Filipinetti	Lotus-BRM	Car not ready	-
WD	Jim Clark	Team Lotus	Lotus-Climax		-
WD	Trevor Taylor	Team Lotus	Lotus-Climax		-
WD	John Surtees	SEFAC Ferrari	Ferrari	Car not ready	-
WD	Nasif Estéfano	Scuderia Tomaso	De Tomaso	Car not ready	-

• "The Grand Prix Who's Who", Steve Small, 1995.
• "The Formula One Record Book", John Thompson, 1974.
• Race results at www.silhouet.com [1]