| Competition: | Primera B de Chile |
| Season: | 2007 |
| Winners: | Provincial Osorno |
| Promoted: | Curicó Unido C.S.D. Rangers |
| Relegated: | Deportivo Temuco |
| League Topscorer: | Mario Núñez (19) |
| Prevseason: | 2006 |
| Nextseason: | 2008 |
The 2007 Primera B de Chile was the 57th completed season of the Primera B de Chile.