2005–06 Serie D
      
The 2005–06 Serie D was the fifty-eightieth edition of the top level Italian non-professional football championship. It represented the fifth tier in the Italian football league system.
 List of teams 
 Girone A 
 Girone B 
 Girone C 
 Girone D 
- Note: In 2005-06, the Girone D was composed of 20 teams instead of the canonical 18 ones.
 
 Girone E 
 Girone F 
 Girone G 
 Girone H 
 Girone I 
Division winners
All teams promoted to 2006–07 Serie C2
- ↑  Dropped because of financial troubles; third-placed Poggibonsi promoted in its place, following renunciation of second-placed team Fortis Juventus to play Serie C2 in 2006–07.
 - 1 2  Additional team also promoted via playoffs; see below.
 - ↑  Vibonese also promoted by the Football Federation to fill Serie C2 league vacancies.
 
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
Third round (group stage)
Group 1
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| Orbassano | 
 1–0  | 
Fortis Juventus | 
| Fortis Juventus | 
 2–1  | 
Salò | 
| Salò | 
 0–1  | 
Orbassano | 
Group 2
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| Vibonese | 
 2–2  | 
Monopoli | 
| Sambonifacese | 
 1–1  | 
Vibonese | 
| Monopoli | 
 2–0  | 
Sambonifacese | 
Group 3
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 | 
 | 
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| Tritium | 
 1–2  | 
Celano | 
| Monterotondo | 
 0–1  | 
Tritium | 
| Celano | 
 1–1 | 
Monterotondo | 
Semi-finals
Winning teams are automatically promoted to Serie C2
Final
Relegations
- Girone A
  
- Girone B
  
- Bergamo Cenate
 
- Caratese
 
- Caravaggio
 
- Oggiono
  
- Girone C
  
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- Girone D
  
- Cologna Veneta
 
- Cordignano
 
- Manzanese
 
- Vallagarina
  
- Girone E
  
- Girone F
  
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- Girone G
  
- Aprilia
 
- Montenero
 
- Sorianese
 
- Spes Mentana
  
- Girone H
  
- Ariano Irpino
 
- Manduria
 
- San Paolo Bari
 
- Sologra
 
- Nuovo Terzigno
  
- Girone I
  
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External links
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| Overview |  | 
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| International |  | 
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| Leagues |  | 
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| League competitions |  | 
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| Cup competitions |  | 
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| Youth competitions |  | 
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| Women's competitions |  | 
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| Awards |  | 
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| Miscellaneous |  | 
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| Seasons |  | 
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