The 1947–48 Serie C was the tenth edition of Serie C, the third highest league in the Italian football league system. As the previous edition, it was divided into three independent leagues: the Northern, the Central and the Southern League. In order to reduce the number of teams in Serie B and Serie C, there were no promotions and most of the teams were relegated to the newly created Promozione, while the worst teams of every group would be relegated to Prima Divisione. Promozione would be organized by the three interregional leagues again, while the new Serie C will become the third division of the Football League.