2009–10 Swiss 1. Liga
| Season | 2009–10 |
|---|---|
| Champions | Group 1: Sion U-21 Group 2: YF Juventus Group 3: Chiasso |
| Promoted | Chiasso Delémont |
| Relegated | Group 1: FC Bavois FC Bulle Group 2: FC Schaffhausen SV Höngg Group 3: FC Emmenbrücke FC Chur 97 |
| Matches played | 3 times 240 plus 12 play-offs plus 1 play-out |
← 2008–09 2010–11 → | |
The 2009–10 Swiss 1. Liga was the 78th season of this league and at this time the third tier of the Swiss football league system, the highest level of amateur football.