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.

Results 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 -

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