1951 Mestaruussarja

The 1951 season was the 21st completed season of Finnish Football League Championship, known as the Mestaruussarja.

Overview
The Mestaruussarja was administered by the Finnish Football Association and the competition's 1951 season was contested by 10 teams. KTP Kotka won the championship and the two lowest placed teams of the competition, Sudet Helsinki and IKissat Tampere, were relegated to the Suomensarja.