2000–01 Swiss 1. Liga

The '''2000–01 Swiss 1. Liga''' was the 69th season of this league since its creation in 1931. The 1. Liga was the third tier of the Swiss football league system and it was also the highest level of amateur football.

Format
There were 48 teams in this division this season, including four U-21 teams, which were the eldest youth teams of the professional clubs in the Super League and the Challenge League. The 1. Liga was divided into three regional groups, each with 16 teams. Within each group, the teams would play a double round-robin to decide their positions in the league. The three group winners and the three runners-up then contested a play-off for the two promotion slots. The U-21 teams were not eligible for promotion and could not compete the play-offs. The two last placed teams in each group were directly relegated to the 2. Liga Interregional.

Promotion play-off
The three group winners and the runners-up contested this play-off for the two promotion slots. The U-21 teams were not eligible for this stage.

Qualification round
 Vaduz win 5–4 on aggregate and continue to the finals.

 Concordia win 3–1 on aggregate and continue to the finals.

 4–4 on aggregate, Serrières win on away goals and continue to the finals.

Summary
Group 1 champions were Serrières, runners-up were Stade Lausanne Ouchy. Group 2 champions were Concordia and runners-up were FC Schaffhausen. Group 3 champions were Vaduz, runners-up were Schötz. These six teams played a qualification and the three winners played a single round-robin to decide the two promotion slots. Concordia and Vaduz secured their promotion to the second tier. Concordia secured the 1. Liga championship.

From group 1 relegated were FC Martigny-Sports and US Terre Sainte. Relegated from group 2 were the two clubs FC Horgen and SV Muttenz and from group 3 the two teams FC Widnau and FC Sursee also suffered relegation. The remaining teams in the division were to be joined in following season by the six winners of the 2. Liga Interregional. These were Sion U-21, FC Baulmes, Basel U-21, Luzern U-21, Zürich U-21 and FC Chur 97.