Serie C is the name of the third and fourth highest football leagues in Italy. It is broken up into Serie C1 (third tier) and Serie C2 (fourth tier).

In turn, Serie C1 consists of two divisions: Serie C1/A and Serie C1/B. For the 2004 season, C1/A has 19 teams, while C1/B has 18. At the end of the season, four teams (two from each division) go up to Serie B and six teams (three from each division) go down to Serie C2.

Serie C2 consists of three divisions: Serie C2/A, Serie C2/B, and Serie C2/C. For the 2004 season, C2/A has 18 teams, C2/B has 20, and C2/C has 18. At the end of the season, six teams (two from each division) go up to Serie C1 and nine teams (three from each division) go down to Serie D.