The 2008–09 Swiss Challenge League was the sixth season of the Swiss Challenge League, the second tier of the Swiss football league pyramid. It began on 25 July 2008 and ended on 30 May 2009. The champions of this season, FC St. Gallen, earned promotion to the 2009–10 Super League. The two teams, FC Concordia Basel and FC La Chaux-de-Fonds, were administratively relegated to the 1. Liga due to the financial reasons.

Teams

League table

Promotion/relegation play-offs

Luzern as 9th-placed team of the 2008–09 Swiss Super League played a two-legged play-off against Challenge League runners-up AC Lugano for a spot in the 2009–10 Super League. ''Luzern won 5–1 on aggregate and remained in the Swiss Super League. Lugano remained in the Swiss Challenge League''

Top goal scorers