ATK (previously known as Atlético de Kolkata) was a professional football club based in Kolkata, West Bengal, which played in the Indian Super League until its merger with Mohun Bagan AC in 2020 to form Mohun Bagan Super Giant. It was established on 7 May 2014 as the first team in the Indian Super League. Initially for first three seasons Spanish La Liga club Atlético Madrid were also a co-owner, later Sanjiv Goenka bought the shares owned by Atlético Madrid. After the end of their partnership with Spanish giant, Atletico de Kolkata has been rechristened to ATK.[1]
This list encompasses the major honours won by ATK and records set by the players and managers. The player records section includes details of the club's leading goalscorers and those who have made most appearances in first-team competitions. The club is tied for the record for the most Indian Super League titles, two, alongside Chennaiyin FC.[2] The club's record appearance maker is Borja Fernández, who made 47 appearances(2014-2016) and the club's record goalscorer is Iain Hume, who scored 18 goals in 30 appearances(2015-2016).
All stats accurate as of match played 03 April 2018.
The club holds the most number of Indian Super League titles[3] and were the first[4] team to lift the ISL trophy.
All current players are in bold
| Name | Years | League | Cup | Durand | Total | |
|---|---|---|---|---|---|---|
| 1 |  Jayesh Rane | 2017-present | 49 | 3 | 0 | 52 |
| 2 | Prabir Das | 2016-present | 46 | 2 | 3 | 51 |
| 3 |  Borja Fernández | 2014-2016 | 47 | - | - | 47 |
| 4 | Arnab Mondal | 2014-2016, 2018-2019 | 45 | 1 | - | 46 |
| 5 | Pritam Kotal | 2016, 2019-present | 39 | 3 | - | 42 |
| 6 | Arindam Bhattacharya | 2018-present | 38 | - | - | 38 |
| 7 | Hitesh Sharma | 2017-2019 | 27 | 2 | 3 | 32 |
| 8 | Ofentse Nato | 2014-2016 | 31 | - | - | 31 |
| 9 | Debjit Majumder | 2016-2019 | 27 | 3 | - | 30 |
| 10 |  Iain Hume | 2015-2016 | 30 | - | - | 30 |
| Name | Years | League | Cup | Total | Ratio | ||
|---|---|---|---|---|---|---|---|
| 1 | Iain Hume | 2015-2016 | 0.60 | ||||
| 2 | Roy Krishna | 2019-present | 0.71 | ||||
| 3 | Edu Garcia | 2019-present | 0.38 | ||||
| 4 | Robbie Keane | 2017-2018 | 0.73 | ||||
| 5 | Manuel Lanzarote | 2018-2019 | 0.41 | ||||
| 6 |  David Williams | 2019-present | 0.39 | ||||
| 7 | Balwant Singh | 2018-2020 | 0.21 | ||||
| 8 | Arata Izumi | 2015 | 0.45 | ||||
| 9 |  Fikru Teferra | 2014 | 0.42 | ||||
| 10 | Sameegh Doutie | 2015-2016 | 0.19 |
| Years | Captain | |
|---|---|---|
| 2014-2015 | Luis García | |
| 2015-2017 | Borja Fernández | |
| 2017-2018 | Robbie Keane | |
| 2018-2019 | Manuel Lanzarote | |
| 2019 (Durand Cup) | Prabir Das | |
| 2019-2020 | Pritam Kotal Roy Krishna |