| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| GK | Patryk Wolanski | 1991-08-15 | 188 | 81 | 2018-06-30 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 30.Dec | Mikkel Rygaard (M) | Widzew Lodz | BK Häcken | Confirmed | |
| 30.Jul | Carlos Gracia (D) | Widzew Lodz | Mjällby AIF | Confirmed | |
| 19.Dec | Carlos Gracia (D) | GIF Sundsvall | Widzew Lodz | Confirmed | |
| 20.Dec | Patryk Wolanski (GK) | AC Horsens | Widzew Lodz | Confirmed | |
| 4.Feb | Adam Duda (F) | Widzew Lodz | Falkenbergs FF | Rumour | |
| 1.Sep | Patryk Wolanski (GK) | Widzew Lodz | FC Midtjylland | Confirmed | |
| 31.Jul | Bartlomiej Pawlowski (F) | Widzew Lodz | Málaga CF | Confirmed | |
| 6.Jun | Mariusz Stepinski (F) | Widzew Lodz | FC Nürnberg | Confirmed | |
| 7.Jan | Riku Riski (F) | Widzew Lodz | Hønefoss BK | Confirmed |