Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2017 |  | Illan Meslier | GK |  | FC Lorient U17 | U17 |
| 07/2017 | | Valentin Petton | GK | |||
| 07/2017 | | Ruddy Ebondo | DF |  | FC Lorient U19 | U19 |
| 07/2017 | | Hugo Jacquemin | DF |  | Stade Rennais B | Rennais (CFA) |
| 07/2017 |  | Stéphane Lambèse | DF |  | Blois Foot 41 | Blois Foot 41 |
| 07/2017 | | Peter Ouaneh | DF | | FC Lorient U19 | U19 |
| 07/2017 | | Tristan Boubaya | MF |  | US Saint-Malo | US Saint-Malo |
| 07/2017 | | Maxence Fortier | MF | | FC Lorient U19 | U19 |
| 07/2017 | | Enzo Le Fée | MF | | FC Lorient U17 | U17 |
| 07/2017 | | Tom Renaud | MF | | FC Lorient U17 | U17 |
| 07/2017 | | Taylor Salibur | MF |  | FC Oborishte | Oborishte |
| 07/2017 | | Kemy Amiche | FW | | FC Lorient U17 | U17 |
| 07/2017 | | Lee-Marving Kouakou | FW | | FC Lorient U19 | U19 |
| 07/2017 | | Jérémy Le Saos | FW | | FC Lorient U17 | U17 |
| 07/2017 | | Benjamin Genton | AS-CO |  | FC Lorient | Lorient |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/2018 | | Lee-Marving Kouakou | FW |  | Bergerac Périgord FC | Bergerac Périgo |
| 07/2017 |  | Abdallah Yaisien | MF |  | Paris Saint-Germain B | Paris SG (CFA) |
| 07/2017 |  | Jean-Philippe Krasso | FW |  | SC Schiltigheim | SC Schiltigheim |
| 07/2017 | | Louis Thébault-Yamaguchi | GK |  | CD Extremadura | CD Extremadura |
| 07/2017 | | David Attah | DF |  | AS Poissy | AS Poissy |
| 07/2017 | | Quentin Lecoeuche | DF | | FC Lorient | Lorient |
| 07/2017 | | Aristote Lusinga | DF |  | US Avranches | US Avranches |
| 07/2017 | | Maxime Etuin | MF | | FC Lorient | Lorient |
| 07/2017 | | Alexandre Lavenant | MF |  | Vannes OC | VOC |
| 07/2017 | | Alexis Ebrard | FW |  | Saint-Colomban Locminé | Saint-Colomban Locminé |
| 07/2017 | | Moussa Guel | FW | | FC Lorient | Lorient |