Ugo Humbert defeated Alexander Shevchenko in the final, 6–3, 6–3 to win the singles tennis title at the 2023 Moselle Open. It was his fourth career ATP Tour singles title.

Lorenzo Sonego was the defending champion, but lost in the quarterfinals to Fabio Fognini.

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

Draw

Finals

Top half

Bottom half

Qualifying Seeds

Qualifiers

Lucky losers

Qualifying draw

First qualifier

Second qualifier

Third qualifier

Fourth qualifier

References

External links Main draw Qualifying draw