The 1931 season was the second competitive season of São Paulo Futebol Clube. In this season, only one year after his debut São Paulo won his first official title with an impressive performance at the Campeonato Paulista with over 20 wins, Rubens Salles, a former player from Club Athletico Paulistano, became the first champion manager in the history of São Paulo FC, after a runners-up performance reached in previous year.