Olivier Chevallier (born February 6, 1949 in Vendôme, Loir-et-Cher - April 6, 1980) was a French professional Grand Prix motorcycle road racer. His best year was in 1977 when he finished in sixth place in the 350cc world championship. His only Grand Prix victory came at the 1976 350cc Yugoslavian Grand Prix at Opatija. He was killed while competing at the Grand Prix of Le Castelet in 1980. Chevallier raced motorcycles designed and built by his brother Alain Chevallier, using Yamaha engines.