US Mondorf-les-Bains is a football club from the town of Mondorf-les-Bains in southeastern Luxembourg. The club competes in the Luxembourg National Division, the top tier of football in the Grand Duchy. They play their home matches at the Stade John Grün, a venue that comes alive on matchdays. The club has a long history within Luxembourg football, experiencing periods in both the top flight and the lower divisions. Their modern era sees them as an established National Division side, aiming to secure their status and challenge for European qualification spots. The team is supported by a loyal local fanbase, drawn from the spa town and its surrounding areas. US Mondorf-les-Bains represents a classic example of a community club competing at the highest level its nation offers, where every match is a significant event for the town and a point of local pride.