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

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 D - Piedmont

Girone D - Liguria

Girone E Northern Lombardy

Girone F Western Lombardy

Girone G Eastern Lombardy

Girone H Southern Lombardy

Girone I Emilia

Semifinals

Girone A

Girone B

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.Special guests were clubs which did not belonged to Serie C before the war. 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

Footnotes