| Competition: | Segunda División |
| Season: | 1955 |
| Winners: | San Luis de Quillota |
| Promoted: | San Luis de Quillota |
| Relegated: | Santiago National |
| Prevseason: | 1954 |
| Nextseason: | 1956 |
The 1955 Segunda División de Chile was the fourth season of the Segunda División de Chile.
San Luis de Quillota was the tournament's winner.[1]