| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| D | Djamel Mesbah | 1984-10-09 | 180 | 72 | |||
| M | Enzo Zidane | 1995-03-24 | 186 | 75 | 2020-06-30 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 30.Jun | Enzo Zidane (M) | CF Rayo Majadahonda | FC Lausanne-Sport | Confirmed | |
| 10.Aug | Enzo Zidane (M) | FC Lausanne-Sport | CF Rayo Majadahonda | Confirmed | |
| 10.Aug | Enzo Zidane (M) | Deportivo Alavés | FC Lausanne-Sport | Confirmed | |
| 9.Aug | Taye Taiwo (D) | FC Lausanne-Sport | AFC Eskilstuna | Confirmed | |
| 30.Jan | Taye Taiwo (D) | HJK Helsinki | FC Lausanne-Sport | Confirmed | |
| 8.Jul | Yeltsin Tejeda (M) | FC Evian Thonon Gaillard | FC Lausanne-Sport | Confirmed | |
| 14.Jul | Patrick Ekeng Ekeng (M) | FC Lausanne-Sport | Córdoba CF | Confirmed | |
| 4.Feb | Emil Lyng (M) | FC Lausanne-Sport | Esbjerg FB | Confirmed | |
| 4.Dec | Emil Lyng (M) | FC Lausanne-Sport | Unknown | Confirmed | |
| 29.Jun | Chris Malonga (M) | AS Monaco FC | FC Lausanne-Sport | Confirmed |