Serie D
Serie D is the top level of the non-professional football clubs in Italy and fourth highest level. Serie D ranks just below Serie C.
| Serie D | ||
| Country |  Italy
| |
| Confederation | UEFA | |
| Founded | 1948 as Promozione Interregionale 1981 as Campionato Interregionale | |
| Level | 5 | |
| Divisions | 9 | |
| Number of teams | 166 | |
| Promotion to | Lega Pro Seconda Divisione | |
| Relegation to | Eccellenza | |
| Domestic cup | Coppa Italia Serie D | |
| Current champions | Venezia (2011-12) | |
| Most successful club | A.C.N. Siena 1904 (2 titles) | |
Teams
From the 1990's the league had 162 teams. The teams were split into 9 regional divisions, called Gironi. The divisions were usually formed of 18 teams. In season 2025-26 there is a San Marino's teams. Teams were grouped based on location:
- Girone A - teams from Piedmont, Liguria & Lombardy.
- Girone B - teams from Veneto & Lombardy.
- Girone C - teams from Trentino-Alto Adige/Südtirol, Friuli-Venezia Giulia & Veneto.
- Girone D - teams from Emilia-Romagna, Lombardy & Tuscany.
- Girone E - teams from Tuscany & Umbria.
- Girone F - teams from Emilia-Romagna, Abruzzo, Lazio, Marche & Molise.
- Girone G - teams from Campania, Lazio & Sardinia.
- Girone H - teams from Apulia, Basilicata & Campania.
- Girone I - teams from Calabria, Campania & Sicily.