Racing Union Luxembourg is a historic football club from Luxembourg City, competing in the Luxembourg National Division, the top tier of football in the Grand Duchy. The club, often abbreviated to RU Luxembourg, plays its home matches at the Stade Achille Hammerel. Founded in 1907 from a merger, the club boasts one of the richest histories in Luxembourg football, having won numerous national championships and cups in the early and mid-20th century, establishing itself as a domestic powerhouse. Their blue and white colors are iconic in Luxembourg sports. While the modern era has seen the club face stronger financial competition, Racing Union remains a respected name, often producing talented young players and aiming for top-half finishes in the league. The club serves as an important developer of local talent for the Luxembourg national team. The fan culture is one of tradition and pride, with older supporters remembering the glory days and younger fans hoping for a return to prominence. Racing Union Luxembourg is a pillar of the nation's sporting heritage, continually striving to add new chapters to its storied legacy.