ATP Buenos Aires is an annual professional tennis tournament held in Buenos Aires, Argentina. It is part of the ATP Tour and typically takes place in February. The event features both singles and doubles competitions, attracting players from around the world. The tournament is played on clay courts, which is a popular surface in South America. It has a rich history, having been established in 2001, and is known for its vibrant atmosphere and enthusiastic local fans. Many top-ranked players participate, making it a significant event in the tennis calendar.