| Competition: | Serie C |
| Season: | 1937–38 |
| Promoted: | Casale Fanfulla SPAL Siena Salernitana |
| Relegated: | many disbanded clubs |
| Prevseason: | 1936–37 |
| Nextseason: | 1938–39 |
The 1937–38 Serie C was the third edition of Serie C, the third highest league in the Italian football league system.