| Competition: | Peruvian Primera División |
| Season: | 1951 |
| Dates: | 30 June 1951 – 18 November 1951 |
| Winners: | Sport Boys |
| Relegated: | Unión Callao |
| Matches: | 90 |
| Total Goals: | 415 |
| League Topscorer: |  Valeriano Lopez (31) |
| Prevseason: | 1950 |
| Nextseason: | 1952 |
The 1951 season of the Peruvian Primera División, the top category of Peruvian football, was played by 10 teams. The national champions were Sport Boys.
Teams play each other once, either home or away. All matches were played in Lima and Callao.