| Club: | Banfield |
| Season: | 2017–18 |
| Manager: | Julio César Falcioni |
| Chairman: | Eduardo Spinosa |
| Stadium: | Estadio Florencio Sola |
| League: | Primera División |
| League Result: | 16th |
| Cup1: | 2016–17 Copa Argentina |
| Cup1 Result: | Round of 16 |
| Cup2: | 2017–18 Copa Argentina |
| Cup2 Result: | Round of 64 |
| Cup3: | Copa Libertadores |
| Cup3 Result: | Second stage |
| League Topscorer: | Two players (5) |
| Season Topscorer: | Two players (5) |
| Prevseason: | 2016–17 |
| Nextseason: | 2018–19 |
The 2017–18 season is Banfield's 5th consecutive season in the top-flight of Argentine football. The season covers the period from 1 July 2017 to 30 June 2018.
.[1]
| Date | Pos. | Name | To | Fee | |
|---|---|---|---|---|---|
| 1 July 2017 | MF |  Juan Manuel Cobo | Released | ||
| 21 July 2017 | MF | Thomas Rodríguez |  Genoa | Undisclosed | |
| 27 July 2017 | MF | Emanuel Cecchini |  Málaga | Undisclosed | |
| 1 August 2017 | DF | Alexis Soto | Racing Club | Undisclosed | |
| 3 August 2017 | DF | Carlos Matheu | Huracán | Undisclosed | |
| 4 August 2017 | GK | Hilario Navarro | Boca Unidos | Undisclosed | |
| 13 August 2017 | MF | Lihué Prichoda | Gimnasia y Esgrima | Undisclosed | |
| 14 August 2017 | MF | Jonathan Requena | Defensa y Justicia | Undisclosed | |
| 14 August 2017 | MF | Miguel Escobar |  Senglea Athletic | Undisclosed | |
| Date from | Date to | Pos. | Name | From | |
|---|---|---|---|---|---|
| 18 July 2017 | 30 June 2018 | FW | Pablo Mouche |  Palmeiras | |
| 1 August 2017 | 30 June 2018 | MF | Nicolás Bertolo | River Plate[4] |
| Date from | Date to | Pos. | Name | To | |
|---|---|---|---|---|---|
| 20 July 2017 | 30 June 2018 | FW | Brian Sarmiento | Newell's Old Boys[5] | |
| 31 July 2017 | 30 June 2018 | MF | Enzo Trinidad | Defensores de Belgrano |
See main article: article and 2017–18 Argentine Primera División.
See main article: article and 2016–17 Copa Argentina.
See main article: article and 2018 Copa Libertadores.