Onofre Agustín Marimón (19 December 1923 – 31 July 1954) was an Argentine racing driver, who competed in Formula One at 12 Grands Prix between 1951 and 1954.

During practice for the 1954 German Grand Prix at the Nürburgring, Marimón died after losing control of his Maserati 250F, impacting a ditch and causing a rollover.

[b] Onofre Agustín Marimón was born on 19 December 1923 in Zárate, Buenos Aires, Argentina.

His Maserati left the Nürburgring race course at the Breidscheid curve near the Adenauer Bridge after he lost control attempting to improve his qualifying time.

Marimón was given the last rites by a Catholic priest before dying a few minutes after rescue workers freed him.