Club Atlético San Isidro is a sports club located in San Isidro, a suburb of Buenos Aires, Argentina. Founded in 1902, it is known for its rich history in various sports, particularly rugby and football. The club's colors are red and white, and it has a strong local following. In addition to rugby and football, Club Atlético San Isidro offers facilities for other sports, including basketball, hockey, and tennis. The club promotes athletic development and community engagement, making it a central hub for sports enthusiasts in the region.