| Competition: | Swiss 1. Liga |
| Season: | 2015–16 |
| Prevseason: | 2014–15 |
| Nextseason: | 2016–17 |
The 2015–16 season of the Swiss 1. Liga was the 94th season of the fourth tier of the Swiss football league system.
FC Bavois and FC La Chaux-de-Fonds were promoted to the 2016–17 1. Liga Promotion.
Following FC Biel-Bienne's bankruptcy and expulsion from the Swiss Challenge League a third promotion spot was available, to be decided by a single match between the losers of the two Play-off Finals.|}
FC United Zürich were promoted to the 2016–17 1. Liga Promotion.[1]