Bizzarrini S.p.A. was an Italian automotive manufacturer founded by Giotto Bizzarrini an Italian engineer born in Livorno, Tuscany in1926 and died on May 13 2023: in 1964 the automotive company was founded by former Alfa Romeo, Ferrari and Iso engineer Giotto Bizzarrini. The company built a small number of highly developed and advanced sport and racing automobiles before failing in 1969: in 2020, it was announced that the name had been acquired by Pegasus brands, together with plans to restart production.

Originally Prototipi Bizzarrini s.r.l., the name was changed to Bizzarrini S.p.A. in 1966. The physical legacy of the marque is scarce and fragmentary, save for a few extremely well-known and incalculably valuable cars. Notable models include the 5300 GT Strada and the P538S. Attempts to bring back the Bizzarrini name resulted in a number of concept cars in the 2000s.