at
Stade Charles-Mathon in 2013 They were founded in 1909 as
Club Sportif Oyonnaxien and were renamed
Union Sportive Oyonaxienne in 1940, as sports clubs were forced to unite by the
Vichy régime. Oyonnax played in the regional leagues until 1967 when they joined the First Division (64 clubs). They were relegated to the lower divisions a few years later and bounced back to Group B of the First Division (the Second Division in fact) in 1988. Finally, in 2003 they reached the
Fédérale 1 final and although they went down to Limoges (18-20), they moved on to the professional
Pro D2. In the 2012/13 season, they won Pro D2 and were promoted to the top-flight
Top 14. They were repromoted after 2016/17, having been relegated the previous season. ==Honours==