Petra Kvitová defeated Donna Vekić in the final, 6–2, 7–6(8–6) to win the singles tennis title at the 2023 WTA German Open.

[1] Kvitová did not lose a set, and only lost three service games, during the entire tournament.

It was her 31st WTA Tour-level title.

Ons Jabeur was the defending champion,[2] but lost in the first round to Jule Niemeier.

[3]