The 2023–24 CEV Challenge Cup was the 44th edition of the third tier European volleyball club competition organised by the European Volleyball Confederation.
Aggregate score is counted as follows: 3 points for 3–0 or 3–1 win, 2 points for 3–2 win, 1 point for 2–3 loss.
In case the teams are tied after two legs, a Golden Set is played immediately at the completion of the second leg.