Louis Meznarie (14 January 1930 – 6 August 2020) was a French engine expert. He was a team owner entrant to 24 Hours of Le Mans. He was born in Saintry-sur-Seine (Essonne), France.
From 1959 to 1971 he was an official dealer of NSU for motorcycles and motorcars and engine preparation expert for French races. In 1968, he opened a large workshop in Le Plessis-Chenet (Le Coudray-Montceaux town) with the support of Shell Oil Company.
From 1971 to 1983, he was the official engine preparation expert for Porsche, with many victories in 24 Hours of Le Mans, French Rally Championship and European Rally Championship. Notably in 1972, Assisted by Jürgen Barth, future winner in a Porsche 936 in 1977, by Sylvain Garant, then Mike Keizer. The 911 with a 2.5-liter engine, flanked by the No. 41 finished in 13th place in the general classification while winning its category.
At the Salon Moto Légende 2017, in Paris, Louis Meznarie, had sold these last motorcycles in number of 4 NSU by the Osenat auction house. In recent years, he traveled less and less but we always enjoyed finding him and exchanging many memories.
Meznarie died on 6 August 2020 at the age of 90.