This is a list of player transfers involving RFU Championship teams before or during the 2023–24 season.
The list is of deals that are confirmed and are either from or to a rugby union team in the Championship during the 2023–24 season.
It is not unknown for confirmed deals to be cancelled at a later date.
[1] On 1 May 2023, Cambridge were promoted to the RFU Championship, whilst Richmond were relegated to National League 1 for the 2023–24 season.
[2] Transfers involving Jersey Reds, which finished the 2022–23 season, are documented on this list – however, the club will not compete in 2023–24, after withdrawing from the league on 28 September 2023, prior to the beginning of the season, due to insufficient funds to continue operating.