1931 Mestaruussarja – Finnish League Championship
| Season | 1931 |
|---|---|
| Champions | HIFK Helsinki |
| Relegated | HJK Helsinki ViPS Viipuri |
| Matches played | 56 |
| Goals scored | 136 (2.43 per match) |
| Top goalscorer | Holger Salin, HIFK Helsinki (11) |
← 1930 1932 → | |
The 1931 season was the second completed season of Finnish Football League Championship, known as the Mestaruussarja. HIFK Helsinki is the defending champion.