The 1948 Monaco Grand Prix was a Grand Prix motor race, held in Monte Carlo on 16 May 1948.
The first event under a new formula, 1ý litres supercharged or 4ý litres naturally aspirated, it featured a motley crowd of marques. Jean-Pierre Wimille's Simca-Gordini took an early lead, but was overwhelmed by the Maserati 4CLs of Giuseppe Farina and then Luigi Villoresi. Farina would take the win.
The event included a motorcycle race, open to 500cc bikes, for the only time in the Monaco Grand Prix's history. It was marred by the death of British rider Norman Linnecar.