The Graf & Stift C 12 is a prototype passenger car of the upper class which was produced by the car company Gräf & Stift in 1938.

The 12-cylinder car was the top model of the brand. If it had gone into production, it would have been supplied to the Austrian government. There was no possibility to mass production, since Austria was annexed to the German Reich.

The car had a side-valve V12 (from Lincoln in the USA) which was front mounted and mated to a 4-speed gearbox sending power to the rear wheels. The engine developed 110 hp (81 kW) at 3500 rpm. The top speed of the 2500 kg vehicle was 125 km/h.