2005–06 Serie D
The 2005–06 Serie D was the fifty-eighth edition of the top level Italian non-professional football championship. It represented the fifth tier in the Italian football league system.
Como Calcio joined with a phoenix club after they suffered bankruptcy in Serie C during the summer.
List of teams
Girone H
Division winners
All teams promoted to 2006–07 Serie C2| Round | Winners | |
| A | Varese | |
| B | Nuorese | |
| C | Boca San Lazzaro | |
| D | Rovigo | |
| E | Fortis Spoleto | |
| F | Val di Sangro | |
| G | Cassino | |
| H | Paganese | |
| I | Sorrento |
Promotion playoffs
First round
''Single-legged matches played at best placed club home field''Second round
''Single-legged matches played at best placed club home field''Semi-finals
''Winning teams are automatically promoted to Serie C2''Relegations
;Girone A- Chiari
- Cossatese
- Vigevano
- Bergamo Cenate
- Caratese
- Caravaggio
- Oggiono
- Centese
- Crevalcore
- Meletolese
;Girone E
- Rondinella
- Venturina
- Frascati
- Urbino
;Girone H
;Girone I