| Competition: | 1. Liga |
| Season: | 1966–67 |
| Winners: | 1. Liga champions: FC Bern Group West: FC Fribourg Group Cenral: FC Cantonal Neuchâtel Group South and East: FC Frauenfeld |
| Promoted: | FC Bern FC Fribourg |
| Relegated: | Group West: FC Forward Morges FC Assens Group Central: FC Olten SR Delémont Group South and East: FC Rorschach FC Wohlen |
| Matches: | 3 times 156 and 1 decider plus 12 play-offs |
| Prevseason: | 1965–66 |
| Nextseason: | 1967–68 |
The 1966–67 1. Liga season was the 35th season of the 1. Liga since its creation in 1931. At this time, the 1. Liga was the third tier of the Swiss football league system and it was the highest level of amateur football.
There were 39 teams competing in the 1. Liga 1967–68 season. They were divided into three regional groups, each group with 13 teams. Within each group, the teams would play a double round-robin to decide their league position. Two points were awarded for a win. The three group winners and the three runners-up then contested a play-off round to decide the two promotion slots. The last two placed teams in each group were relegated to the 2. Liga (fourth tier).
| Club | Based in | Canton | Stadium | Capacity |
|---|---|---|---|---|
| FC Assens[1] | Assens | Terrain FC Assens | ||
| CS Chênois | Thônex | Stade des Trois-Chêne | ||
| Étoile Carouge FC | Carouge | Stade de la Fontenette | ||
| FC Fontainemelon[2] [3] | Dombresson | Centre Sportif Fontainemelon | ||
| FC Fribourg | Fribourg | Stade Universitaire | ||
| FC Martigny-Sports | Martigny | Stade d'Octodure | ||
| FC Forward Morges[4] | Morges | Parc des Sports | ||
| FC Monthey | Monthey | Stade Philippe Pottier | ||
| FC Raron[5] | Raron | Sportplatz Rhoneglut | ||
| FC Stade Lausanne | Ouchy, Lausanne | Centre sportif de Vidy | ||
| FC Versoix[6] | Versoix | Centre sportif de la Bécassière | ||
| Vevey Sports | Vevey | Stade de Copet | ||
| Yverdon-Sport FC | Yverdon-les-Bains | Stade Municipal | ||
| Club | Based in | Canton | Stadium | Capacity |
|---|---|---|---|---|
| FC Alle | Alle | Centre Sportif Régional | ||
| FC Bern | Bern | Stadion Neufeld | ||
| FC Breitenbach[7] | Breitenbach | Grien | ||
| SC Burgdorf[8] | Burgdorf | Stadion Neumatt | ||
| FC Cantonal Neuchâtel | Neuchâtel | Stade de la Maladière | ||
| FC Concordia Basel | Basel | Stadion Rankhof | ||
| SR Delémont | Delémont | La Blancherie | ||
| FC Dürrenast[9] | Thun | Stadion Lachen | ||
| FC Langenthal[10] | Langenthal | Rankmatte | ||
| FC Minerva Bern | Bern | Spitalacker | ||
| FC Nordstern Basel | Basel | Rankhof | ||
| FC Olten[11] | Olten | Sportanlagen Kleinholz | ||
| FC Porrentruy[12] | Porrentruy | Stade du Tirage | ||
The decider was played on 4 June in Burgdorf. FC Dürrenast win and remain in the division. FC Olten are relegated directly to 2. Liga Interregional.
| Club | Based in | Canton | Stadium | Capacity |
|---|---|---|---|---|
| FC Amriswil[13] | Amriswil | Tellenfeld | ||
| FC Emmenbrücke | Emmen | Stadion Gersag | ||
| FC Frauenfeld | Frauenfeld | Kleine Allmend | ||
| FC Küsnacht[14] | Küsnacht | Sportanlage Heslibach | ||
| FC Locarno | Locarno | |||
| FC Red Star Zürich | Zürich | Allmend Brunau | ||
| FC Rorschach[15] | Rorschach | Sportplatz Kellen | ||
| FC Schaffhausen | Schaffhausen | Stadion Breite | ||
| FC Uster[16] | Uster | Sportanlage Buchholz | ||
| FC Vaduz | Vaduz | Liechtenstein | Rheinpark Stadion | |
| FC Widnau[17] | Widnau | Sportanlage Aegeten | ||
| FC Wohlen[18] | Wohlen | [19] | ||
| SC Zug | Zug | Herti Allmend Stadion | ||
The three group winners and the runners-up played a round-robin against the four teams who had not been in their group.
The first games were played on 4 June. The second round was played on 11 June. The next games were played on 18 June. The final round were played on 25 June 1967.