| Competition: | Regionalliga |
| Season: | 1966–67 |
| Winners: | Arminia HannoverHertha BSC BerlinAlemannia AachenBorussia NeunkirchenKickers Offenbach |
| Promoted: | Alemannia AachenBorussia Neunkirchen |
| Relegated: | VfV HildesheimBremer SVSC StaakenLichterfelder SUSSV HagenHammer SpVgBonner SCEintracht DuisburgTuS NeuendorfPhönix BellheimGermania MetternichBC AugsburgGermania Wiesbaden1. FC Pforzheim |
| Prevseason: | 1965–66 |
| Nextseason: | 1967–68 |
The 1966–67 Regionalliga was the fourth 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 all five runners-up, at the end of the season, 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 Berlin and Regionalliga Südwest champions Alemannia Aachen and Borussia Neunkirchen.
The 1966–67 season saw two new clubs in the league, HSV Barmbeck-Uhlenhorst and SC Sperber Hamburg, both promoted from the Amateurliga, while no club had been relegated from the Bundesliga to the league.
The 1966–67 season saw three new clubs in the league, Rapide Wedding and Kickers 1900 Berlin, both promoted from the Amateurliga, while Tasmania 1900 Berlin had been relegated from the Bundesliga to the league.
The 1966–67 season saw four new clubs in the league, VfR Neuß, SSV Hagen, Hammer SpVg and Bonner SC, all promoted from the Amateurliga, while no club had been relegated from the Bundesliga to the league.
The 1966–67 season saw three new clubs in the league, FC Homburg and Germania Metternich, both promoted from the Amateurliga, while Borussia Neunkirchen had been relegated from the Bundesliga to the league.
The 1966–67 season saw three new clubs in the league, FC 08 Villingen, Germania Wiesbaden and BC Augsburg, all promoted from the Amateurliga, while no club had been relegated from the Bundesliga to the league.