Borussia VfL 1900 Mönchengladbach e.V., commonly known as Borussia Mönchengladbach, Mönchengladbach or Gladbach, is a German football club in Mönchengladbach, North Rhine-Westphalia. Founded in 1900, Borussia Mönchengladbach play in the Bundesliga, the top tier of the German football league system, making their first appearance in the league during the 1965–66 season. Subsequently the club became one of Germany's best-known, best-supported, and most successful teams, winning the Bundesliga five times during the 1970s. The club has won five League titles, three DFB-Pokals, and two UEFA Europa League titles.
Since 2004, Borussia Mönchengladbach have played at Borussia-Park, having previously played at the Bökelbergstadion since 1919. The club's main rivals are FC Köln, against whom they contest the Rheinland Derby.