The 2023–24 EPCR Challenge Cup pool stage was the first stage of the 10th season of the EPCR Challenge Cup.
The pool stage draw took place on 21 June 2023.
[1] The complete fixture list was then announced on 13 July 2023.
The top four teams in each pool progressed to the round of 16 as well as the fifth-ranked team from each Champions Cup pool.
[3] In the event of a tie between two or more teams, the following tie-breakers were used, as directed by European Professional Club Rugby: