| Competition: | Peruvian Primera División |
| Season: | 1931 |
| Dates: | 26 April 1931 – 5 July 1931 |
| Winners: | Alianza Lima |
| League Topscorer: |  Alejandro Villanueva (16) |
| Prevseason: | 1930 |
| Nextseason: | 1932 |
The 1931 season of the Peruvian Primera División was the 16th season of top-flight Peruvian football. It was played by 12 teams. The national champions were Alianza Lima.[1] [2] [3] Federación Universitaria and Ciclista Lima were both deducted 1 point because of walkover defeats. First Division reduced to 8 teams for 1932.
The whole tournament was played in three stadiums:
| Stadium | City | |
|---|---|---|
| Lima | ||
| Estadio Modelo de Bellavista | Callao |
| Team | City |
|---|---|
| Pueblo Libre, Lima | |
| Lawn Tennis de la Exposición | |
| Sportivo Unión | |
Teams play each other once, either home or away. All matches were played in Lima.
| Team | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Alianza Lima | 11 | 11 | 0 | 0 | 53 | 4 | +49 | 33 | 5.75 | 38.75 | Champions |
| 2 | Sporting Tabaco | 11 | 8 | 1 | 2 | 35 | 19 | +16 | 28 | 6 | 34 | |
| 3 | Alianza Frigorífico | 11 | 7 | 0 | 4 | 15 | 18 | -3 | 25 | 6.75 | 31.75 | |
| 4 | Federación Universitaria | 11 | 5 | 1 | 5 | 23 | 15 | +8 | 21 | 7.5 | 28.5 | |
| 5 | Atlético Chalaco | 11 | 6 | 2 | 3 | 27 | 25 | +2 | 25 | 3 | 28 | |
| 6 | Sportivo Tarapacá Ferrocarril | 11 | 4 | 2 | 5 | 20 | 25 | –5 | 21 | 5.5 | 26.5 | |
| 7 | Unión Buenos Aires | 11 | 4 | 1 | 6 | 19 | 25 | –6 | 20 | 5 | 25 | |
| 8 | Sportivo Unión | 11 | 4 | 1 | 6 | 18 | 20 | –2 | 20 | 4.75 | 24.75 | |
| 9 | Hidroaviación | 11 | 4 | 1 | 6 | 21 | 22 | –1 | 20 | 4 | 24 | |
| 10 | Circolo Sportivo Italiano | 11 | 4 | 0 | 7 | 12 | 29 | –17 | 19 | 5 | 24 | |
| 11 | Lawn Tennis de la Exposición | 11 | 2 | 0 | 9 | 9 | 24 | –15 | 15 | 5.5 | 20.5 | |
| 12 | Ciclista Lima | 11 | 2 | 1 | 8 | 14 | 40 | –26 | 15 | 3.75 | 18.75 | |
It was played with the last four places in the First Division and the four best in the 1931 División Intermedia (Juventud Perú, Miguel Grau, Sport Progreso and Sucre).
Teams play each other once, either home or away. All matches were played in Lima.
| Team | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Sport Progreso | 7 | 5 | 2 | 0 | 17 | 8 | +9 | 19 | 2.5 | 21.5 | |
| 2 | Lawn Tennis de la Exposición | 7 | 4 | 1 | 2 | 16 | 15 | +1 | 16 | 4.75 | 20.75 | |
| 3 | Hidroaviación | 7 | 3 | 2 | 2 | 17 | 12 | +5 | 16 | 4 | 20 | |
| 4 | Circolo Sportivo Italiano | 7 | 3 | 2 | 2 | 13 | 11 | +2 | 15 | 4 | 19 | |
| 5 | Ciclista Lima | 7 | 3 | 2 | 2 | 9 | 11 | -2 | 15 | 3.75 | 18.75 | |
| 6 | Juventud Perú | 7 | 3 | 0 | 4 | 9 | 13 | -4 | 13 | 3.5 | 16.5 | |
| 7 | Sucre | 7 | 2 | 0 | 5 | 6 | 12 | -6 | 11 | 3.25 | 14.25 | |
| 8 | Miguel Grau | 7 | 0 | 0 | 7 | 5 | 11 | -6 | 6 | 2.5 | 8.5 | |