| Date
|
| Grand Prix
| Location
| Winner
| Team
| Report
|
| March 29, 1931
| 
| Tunis
| Carthage
| Achille Varzi
| Bugatti
| Report
|
| April 4, 1931
| 
| Saint Raphael
| D'esterel Plage
| Phillipe Etancelin
| Bugatti
| Report
|
| April 19, 1931
| 
| Monaco
| Monte Carlo
| Louis Chiron
| Bugatti
| Report
|
| April 26, 1931
| 
| Alessandria
| Bordino
| Achille Varzi
| Bugatti
| Report
|
| May 10, 1931
|
| Targa Florio
| Madonie
| Tazio Nuvolari
| Alfa Romeo
| Report
|
| May 10, 1931
|
| Picardy
| Peronne
| Ivernel
| Bugatti
| Report
|
| May 17, 1931
| 
| Casablanca
| Anfa
| Stanislas Czaykowski
| Bugatti
| Report
|
| May 24, 1931
|
| Italy
| Monza
| Giuseppe Campari/Tazio Nuvolari
| Alfa Romeo
| Report
|
| June 7, 1931
| 
| Geneva
| Meyrin
| Marcel Lehoux
| Bugatti
| Report
|
| June 7, 1931
|
| Rome
| Littorio
| Ernesto Maserati
| Maserati
| Report
|
| June 7, 1931
| 
| Eifelrennen
| Nurburgring
| Rudolf Caracciola
| Mercedes-Benz
| Report
|
| June 7, 1931
| 
| Lwow
| Lwow
| Hans Stuck
| Mercedes-Benz
| Report
|
| June 21, 1931
|
| France
| Montlhery
| Louis Chiron/Achille Varzi
| Bugatti
| Report
|
| July 5, 1931
|
| Marne
| Reims
| Marcel Lehoux
| Bugatti
| Report
|
| July 5, 1931
|
| Vaucluse
| Avignon
| Frédéric Toselli
| Bugatti
| Report
|
| July 12, 1931
| 
| Belgium
| Spa Francorchamps
| William Williams/Caberto Conelli
| Bugatti
| Report
|
| July 19, 1931
|
| German
| Nurburgring
| Rudolf Caracciola
| Mercedes-Benz
| Report
|
| July 26, 1931
|
| Dieppe
| Dieppe
| Phillipe Etancelin
| Alfa Romeo
| Report
|
| August 2, 1931
|
| Coppa Ciano
| Montenero
| Tazio Nuvolari
| Alfa Romeo
| Report
|
| August 2, 1931
|
| Avusrennen
| AVUS
| Rudolf Caracciola
| Mercedes-Benz
| Report
|
| August 2, 1931
|
| Dauphine
| Grenoble
| Phillipe Etancelin
| Alfa Romeo
| Report
|
| August 16, 1931
|
| Comminges
| St. Gaudens
| Phillipe Etancelin
| Alfa Romeo
| Report
|
| August 16, 1931
|
| Coppa Acerbo
| Pescara
| Giuseppe Campari
| Alfa Romeo
| Report
|
| September 6, 1931
|
| Monza
| Monza
| Luigi Fagioli
| Maserati
| Report
|
| September 13, 1931
|
| La Baule
| La Baule
| William Williams
| Bugatti
| Report
|
| September 27, 1931
| 
| Masaryk
| Brno
| Louis Chiron
| Bugatti
| Report
|
| September 27, 1931
|
| Brignoles
| Brignoles
| Rene Dreyfus
| Bugatti
| Report
|
| October 17, 1931
| 
| Mountain
| Brooklands
| Henry Birkin
| Maserati
| Report
|
