1945–46 Serie C

The 1945–46 Serie C was a special edition of Serie C, the third highest league in the Italian football league system. Best clubs of Northern Italy were admitted as special guests into the 1945–46 Serie B-C Alta Italia.

Legend
{{legend|#BBF3BB|Promoted}} {{legend|#FFBBBB|Relegated}}

Northern Italy
Northern Italy sides were divided in several rounds (gironi). The winners qualified to a tournament to determine the only team promoted to 1946–47 Serie B. None of the teams relegated.

Girone A

 * Venezia Giulia

Girone B

 * Eastern Veneto

Girone C

 * Western Veneto

Girone E

 * Northern Lombardy

Girone F

 * Western Lombardy

Girone G

 * Eastern Lombardy

Girone H

 * Southern Lombardy

Girone I

 * Emilia

Final
Mestrina promoted to 1946–47 Serie B.

Central and Southern Italy
All the winners of the rounds (gironi) were promoted to 1946–47 Serie B; however, clubs participating as special guests could not be promoted. Later other teams were admitted to Serie B to create a southern round.

Girone A

 * Tuscany

Girone B

 * Umbria and Marche

Girone C

 * Lazio and Abruzzo

Girone D

 * Campania and Basilicata

Girone E

 * Apulia

Girone F

 * Calabria and Sicily