Stadion Lachen is a multi-use stadium in Thun, Switzerland. It is currently used mostly for American football matches of the Thun Tigers. The stadium served as the home ground of FC Thun from 1954 to 2011 until the Swiss Football League deemed it unfit for top-tier football, prompting the club to construct a new stadium. The stadium has a capacity of 10,350 and opened in 1954. The stadium has areas for both sitting and standing.