Tallon Griekspoor defeated Jordan Thompson in the final, 6–7(4–7), 7–6(7–3), 6–3 to win the men's singles tennis title at the 2023 Libéma Open.

Tim van Rijthoven was the reigning champion,[2] but did not compete due to an elbow injury.

[3] This tournament marked the return of 2016 Wimbledon finalist and former world No.

3 Milos Raonic, after being away from the tour since 2021.

The top four seeds received a bye into the second round.