The 2025 Kakkonen is the 53rd season of Kakkonen, the fourth-highest football league in Finland. The season began on 12 April and ended in October 2025. It's the second season of the Kakkonen serving as the fourth-tier football league in Finland.
The league consisted of thirty teams, split into three equal groups (A, B, and C).
Group A
Group B
Group C
The top six teams in each group qualify for the Promotion Group and play each team in their group for the third time. The top two teams in each group and the top two third-placed teams advance to the Kakkonen play-offs.
The bottom four teams in each group qualify for the Relegation Group and play each team in their group for the third time. The bottom two teams in each group are relegated to the 2026 Kolmonen.
</onlyinclude>