Louis Rosier (5 November 1905 in Chapdes-Beaufort – 29 October 1956 in Neuilly-sur-Seine) was a racing driver from France.

Career highlights

He participated in 38 Formula One World Championship Grands Prix, debuting on 13 May 1950. He achieved 2 podiums, and scored a total of 18 championship points. He won the Dutch Grand Prix twice in consecutive years between 1950 and 1951, the Circuit d'Albi, Grand-Prix de l'Albigeois and the 24 Hours of Le Mans with his son Jean-Louis Rosier. Rosier owned the Renault dealership of Clermont-Ferrand.In 2016, in an academic paper that reported a mathematical modeling study that assessed the relative influence of driver and machine, Rosier was ranked the 19th best Formula One driver of all time.

Formula One and sports car competition

Rosier finished 4th at Silverstone in a Talbot, in October 1948. The event was the RAC International Grand Prix, the first grand prix to be held in England since 1927. He drove a 4.5-liter, unsupercharged Talbot-Lago to 3rd place at the 1949 British Grand Prix at Silverstone. He was a lap behind the winner with a speed of 76.21 miles per hour (122.65 km/h). Rosier won an International Grand Prix at Spa-Francorchamps in June 1949.