| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| GK | Paul Reulet | 1994-01-14 | 181 | 68 | 2019-06-30 | ||
| M | Jeremy Livolant | 1998-01-09 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 30.Jun | Jeremy Livolant (M) | US Boulogne | EA Guingamp | Confirmed | |
| 30.Jun | Paul Reulet (GK) | US Boulogne | SM Caen | Confirmed | |
| 30.Jun | Alexis Araujo (M) | US Boulogne | LOSC Lille Métropole | Confirmed | |
| 2.Jun | Joseph Romeric Lopy (M) | US Boulogne | Clermont Foot | Confirmed | |
| 31.May | Diego Gomez (M) | US Boulogne | Angers SCO | Confirmed | |
| 29.Jan | Diego Gomez (M) | Angers SCO | US Boulogne | Confirmed | |
| 22.Jan | Alexis Araujo (M) | LOSC Lille Métropole | US Boulogne | Confirmed | |
| 24.Nov | Johnny Lundberg (D) | Halmstads BK | US Boulogne | Rumour |