The 2008–09 Liga II was the 69th season of the second tier of the Romanian football league system.
At the end of the season, the top two teams of the series promoted to Liga I and the bottom fourth places from both series relegated to Liga III.
Unirea Sânnicolau Mare was absorbed by newly founded FCM Târgu Mureș, as a result of a merge.
Unirea Sânnicolau Mare was refounded in the lower leagues.
FCM Câmpina was absorbed by Dunărea Galați, as a result of a merge.