Additions
![FC Lausanne-Sport [U21]](https://s.hs-data.com/gfx/emblem/common/80x80/135795.png "FC Lausanne-Sport [U21]")
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 02/2024 |  | Setigui Karamoko | DF |  | FC Bulle | FC Bulle |
| 10/2023 | | Maxence Lescroart | MF |  | Wasquehal FC | Wasquehal FC |
| 09/2023 | | Yohan Baret | DF |  | Panachaiki GE | Panachaiki GE |
| 07/2023 |  | Brice Cognard | GK |  | LB Châteauroux | Châteauroux |
| 07/2023 | | Virgile Piechocki | MF |  | Le Puy-en-Velay FC | Le Puy |
| 07/2023 | | Paul Leherpeur | DF |  | US Granvillaise | US Granville |
| 07/2023 |  | David Pollet | FW | | Wasquehal FC | Wasquehal FC |
| 07/2023 |  | Mehdi Boussaïd | MF |  | Le Mans FC | Le Mans |
| 07/2023 | | Ihsan Sacko | MF |  | FC Thun Berner Oberland | FC Thun |
| 07/2023 | | Florian Bresteau | DF |  | FC Saint-Lô Manche | FC Saint-Lô Manche |
| 07/2023 |  | Oussama Falouh | DF |  | Angers SCO B | Angers SCO II |
| 07/2023 | | Cédric Makutungu | DF |  | Dijon FCO | Dijon FCO |
| 07/2023 |  | Formose Mendy | DF |  | Nîmes Olympique | Nîmes |
| 07/2023 | | Noah Françoise | MF |  | Stade Rennais | Stade Rennais |
| 07/2023 |  | Goduine Koyalipou | MF |  | FC Lausanne-Sport | FC Lausanne |
| 07/2023 | | Nicolas Mercier | FW |  | AJ Auxerre | Auxerre |