The 2023–24 CEV Challenge Cup was the 44th edition of the third tier European volleyball club competition organised by the European Volleyball Confederation.

Projekt Warsaw won the title by beating Vero Volley Monza in the final.

[1][2][3] Qualification round (Home and away matches): Main phase (Home and away matches): Final phase (Home and away matches): 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.

The draw was held in Luxembourg on 19 July 2023.