Fußballclub Gelsenkirchen-Schalke 04 e. V., commonly known as Schalke 04, and abbreviated as S04, is a professional sports club from the Schalke district of Gelsenkirchen, North Rhine-Westphalia. It is best known for its football team, which plays in the Bundesliga, the top flight of the German football league system, following promotion from the 2.Bundesliga in 2025–26. Other activities offered by the club include athletics, basketball, handball, table tennis, winter sports and eSports.