| Season: | 1918 |
| Dates: | 19 May 1918 – 17 November 1918 |
| Winners: | Sport Alianza 1st Primera División title |
| League Topscorer: | Guillermo Rivero (18) |
| Nextseason: | 1919 |
The 1918 Primera División was the seventh season of top-flight Peruvian football. A total of 14 teams competed in the league, The champion was Sport Alianza.[1] [2] [3] It was organized by the homonymous entity, Liga Peruana de Football (Peruvian Football League), currently known as Professional Football Sports Association.[4]
Club Sport José Gálvez requested a license from the Liga Peruana de Football to not participate in this season and Unión Miraflores did not participate, automatically descending in category to the Peruvian Segunda División.
| Team | City |
|---|---|
| Alianza Chorrillos | |
| Association Alianza | |
| Fraternal Barranco | |
| Sport Vitarte | |
| Sportivo Lima | |
| Unión Perú | |