| Clubname: | Chennaiyin F.C. |
| Fullname: | Chennaiyin Football Clu |
| Club: | Chennaiyin |
| Season: | 2017-2018 |
| Chrtitle: | President |
| Ceotitle: | CEO |
| Mgrtitle: | Head Coach |
| Manager: | John Gregory |
| Stadium: | Jawaharlal Nehru Stadium, Chennai |
| League: | ISL |
| League Result: | 2nd |
| Cup1: | ISL finals |
| Cup1 Result: | Champions |
| League Topscorer: |  Jeje Lalpekhlua (9 goals) |
| Season Topscorer: | Jeje Lalpekhlua (9 goals) |
| Highest Attendance: | 19,013 |
| Lowest Attendance: | 12,499 |
| Average Attendance: | 15,538 |
| Largest Win: | 3–0 (vs NorthEast United on 23 Nov 2017) 3–0 (vs Goa on 13 Mar 2018) |
| Largest Loss: | 1–3 (vs NorthEast United on 19 January 2018) 1–3 (vs Bengaluru on 6 February 2018) |
| Pattern La1: | _whiteborder |
| Pattern B1: | _vneckwhite |
| Pattern Ra1: | _whiteborder |
| Pattern Sh1: | _whitebottom |
| Pattern So1: | _1415h |
| Leftarm1: | 000080 |
| Body1: | 000080 |
| Rightarm1: | 000080 |
| Shorts1: | 000080 |
| Socks1: | 000080 |
| Pattern La2: | _navyborder |
| Pattern B2: | _vnecknavy |
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| Pattern Sh2: | _transparentbottom |
| Pattern So2: | _top_on_white |
| Socks2: | 000080 |
| Prevseason: | 2016 |
| Nextseason: | 2018–19 |
| Updated: | 13 March 2018 |
The 2017–18 Chennaiyin FC season was the club's fourth season since its establishment in 2014 and their fourth season in the Indian Super League.
In:
Out:
| Position | Name | |
|---|---|---|
| Head coach | John Gregory | |
| Assistant coach | Mark Lillis | |
| Assistant coach | Syed Sabir Pasha | |
| Sports scientist | Niall Clark | |
| Goalkeeping coach | Tony Warner | |
| Physiotherapist | Robert Gilbert |
See main article: 2017–18 Indian Super League season.
See main article: article and 2018 Indian Super Cup.
As one of the top six teams in Indian Super League, Chennaiyin FC qualified for the main round in 2018 Indian Super Cup. Chennaiyin FC will meet the fifth placed I-League side Aizawl F.C. in Round of 16 match.[2]
|-|colspan="14"|Players who left Chennaiyin due to injury during the season:|}
| width=60 | Place | width=60 | Position | width=60 | Nation | width=60 | Number | width=150 | Name | width=100 | ISL | width=100 | Super Cup | width=80 | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | FW | | 12 | Jeje Lalpekhlua | 9 | 0 | 9 | ||||||||
| 2 | DF |  | 27 | Mailson Alves | 4 | 1 | 5 | ||||||||
| 3 | DF |  | 14 | 3 | 0 | 3 | |||||||||
| MF | | 19 | Raphael Augusto | 3 | 0 | 3 | |||||||||
| 5 | FW | | 20 | Mohammed Rafi | 2 | 0 | 2 | ||||||||
| MF | 10 | Rene Mihelič | 2 | 0 | 2 | ||||||||||
| MF | | 15 | Anirudh Thapa | 2 | 0 | 2 | |||||||||
| MF | | 17 | Dhanpal Ganesh | 2 | 0 | 2 | |||||||||
| 9 | DF | 2 | Henrique Sereno | 1 | 0 | 1 | |||||||||
| MF | 7 | Gregory Nelson | 1 | 0 | 1 | ||||||||||
| MF | | 30 | Francis Fernandes | 1 | 0 | 1 | |||||||||
| DF | | 25 | Dhanachandra Singh | 0 | 1 | 1 | |||||||||
| Own goal | 1 | 0 | 1 | ||||||||||||
| TOTALS | 31 | 2 | 33 | ||||||||||||
| width=150 | Player | width=80 | ISL | width=80 | Super Cup | width=80 | Total | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | GK | | Karanjit Singh | 7 | 0 | 7 | ||||
| 2 | 13 | GK | | Pawan Kumar | 1 | 0 | 1 | ||||
| 3 | 36 | GK | | Shahinlal Meloly | 0 | 0 | 0 | ||||
| TOTALS | 8 | 0 | 8 | ||||||||
| Number | Nation | Position | Name | ISL | Super Cup | Total | |||||||
| 1 | | GK | Karanjit Singh | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | |
| 2 | DF | Henrique Sereno | 8 | 1 | 0 | 0 | 0 | 0 | 8 | 1 | 0 | ||
| 6 | | MF | Bikramjit Singh | 2 | 0 | 0 | 1 | 0 | 0 | 3 | 0 | 0 | |
| 7 |  | MF | Gregory Nelson | 5 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | |
| 8 | | MF | Jaime Gavilán | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | |
| 10 | MF | Rene Mihelič | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | ||
| 12 | | FW | Jeje Lalpekhlua | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | |
| 14 | | DF | Iñigo Calderón | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | |
| 15 | | MF | Anirudh Thapa | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | |
| 17 | | MF | Dhanpal Ganesh | 9 | 0 | 0 | 1 | 0 | 0 | 10 | 0 | 0 | |
| 18 | | DF | Jerry Lalrinzuala | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | |
| 19 | | MF | Raphael Augusto | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | |
| 27 | | DF | Maílson Alves | 5 | 0 | 0 | 1 | 0 | 0 | 6 | 0 | 0 | |
| 28 | | MF | Germanpreet Singh | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | |
| TOTALS | 47 | 1 | 0 | 3 | 0 | 0 | 50 | 1 | 0 | ||||