1965–66 Regionalliga

The 1965–66 Regionalliga was the third season of the Regionalliga, the second tier of the German football league system. The league operated in five regional divisions, Berlin, North, South, Southwest and West. The five league champions and four runners-up, the Regionalliga Berlin runners-up was not qualified, entered a promotion play-off to determine the two clubs to move up to the Bundesliga for the next season. The two promotion spots went to the Regionalliga West champions Fortuna Düsseldorf and runners-up Rot-Weiß Essen.

1965–66 Regionalliga

The 1965–66 Regionalliga was the third season of the Regionalliga, the second tier of the German football league system. The league operated in five regional divisions, Berlin, North, South, Southwest and West. The five league champions and four runners-up, the Regionalliga Berlin runners-up was not qualified, entered a promotion play-off to determine the two clubs to move up to the Bundesliga for the next season. The two promotion spots went to the Regionalliga West champions Fortuna Düsseldorf and runners-up Rot-Weiß Essen.