ATK (football club)

ATK Football Club (also known as Atlético de Kolkata in association with Atlético Madrid) was an Indian professional football club based in Kolkata, West Bengal. The club competed in the ISL, the top flight of Indian football. They were the cup winners during the inaugural 2014 season, 2016 and 2019–20 seasons respectively.

The club was owned by Kolkata Games and Sports Pvt. Ltd. which consists of former Indian cricket captain Sourav Ganguly, alongside businessmen Harshavardhan Neotia, Sanjiv Goenka and Utsav Parekh. Initially, for the first three seasons, Spanish La Liga club Atlético Madrid was also a co-owner; later Goenka bought the shares owned by Atlético Madrid. After the end of their partnership with the Spanish giant, Atlético de Kolkata has been rechristened to ATK in July 2017. The team's name and colours are derived from their former Spanish partner.

Under coach Antonio López Habas, Atlético hosted and won the first match of the ISL. They won the inaugural season, beating Kerala Blasters 0–1 in the final. Two years later, under José Francisco Molina, the team won on penalties against the same opponent in the final. Currently, ATK holds the most ISL Cup trophies with 3, defeating Chennaiyin FC in the 2020 final.

On 16 January 2020, it was announced that the RPSG Group (KGSPL) along with former cricketer Sourav Ganguly and businessmen Utsav Parekh, acquired an 80% stake in Mohun Bagan Football Club (India) Pvt. Ltd. the legal entity owning the football division of I-League club, Mohun Bagan. ATK Football Club was officially disbanded on 1 July 2020 and Mohun Bagan entered the Indian Super League in the 2020-21 season with name ATK Mohun Bagan. In 2023, after severe protests from the Mohun Bagan supporters, KGSPL removed ATK and changed the name of the legal entity to Mohun Bagan Super Giant.