The Matra MS11 was a Formula-1 race car designed and built by Matra in 1968.

The MS11, also known as Matra Matra, was fitted with a V12 engine.

The 60-degree 12-cylinder engine delivered almost 390 hp and thus had less power than the 8-cylinder engine from Cosworth, which were installed in MS10. The six exhaust pipes produced a relentless noise and made the MS11 the loudest cars of the 1968 Formula 1 race car generation. Since the engine was not part of the structural support, edge beams were installed to behind the cockpit as reinforcements. This additional weight and the 12-cylinder engine  meant the MS11 was a lot heavier than MS10.

The first race for the MS11 was the Monaco Grand Prix.