1978 2. divisjon

The 1978 2. divisjon was a Norwegian second-tier football league season. The league was contested by 30 teams, divided into a total of three groups; A and B (non-Northern Norwegian teams) and Group C, a district group which contained teams from Northern Norway. The winners of group A and B were promoted to the 1979 1. divisjon. The second placed teams in group A and B met the winner of group C in a qualification round where the winner was promoted to 1. divisjon. The bottom team in group A and B and the seven lowest ranked teams in group C were relegated to the 3. divisjon. The second last teams in group A and B met in a two-legged qualification round to avoid relegation.

1978 2. divisjon

The 1978 2. divisjon was a Norwegian second-tier football league season. The league was contested by 30 teams, divided into a total of three groups; A and B (non-Northern Norwegian teams) and Group C, a district group which contained teams from Northern Norway. The winners of group A and B were promoted to the 1979 1. divisjon. The second placed teams in group A and B met the winner of group C in a qualification round where the winner was promoted to 1. divisjon. The bottom team in group A and B and the seven lowest ranked teams in group C were relegated to the 3. divisjon. The second last teams in group A and B met in a two-legged qualification round to avoid relegation.