The 1955 Belgian Grand Prix was a Formula One motor race held at Spa-Francorchamps on June 5, 1955.

The 36-lap race was won by Mercedes driver Juan Manuel Fangio after he started from second position.

Harry Schell set a grid time but his car was driven by teammate Maurice Trintignant.

Private entrant Eugenio Castellotti retired after 16 laps, Jean Behra crashed and Hawthorn's Vanwall had an oil leak.

The domination of the silver cars was such that they came in over 2 minutes ahead of Farina in third place after he had lost a great deal of time attempting unsuccessfully to pass Castellotti.