See main article: article and 2023 Generali Open Kitzbühel.
Sebastián Báez defeated Dominic Thiem in the final, 6–3, 6–1 to win the singles tennis title at the 2023 Austrian Open Kitzbühel. It was his third ATP Tour singles title.[1] It was Thiem's first appearance in an ATP Tour final since the 2020 ATP Finals, and his last before retiring from professional tennis the following year. Thiem was also the second consecutive Austrian wildcard to reach the final, after Filip Misolic the previous year.
Roberto Bautista Agut was the reigning champion,[2] but withdrew before the tournament began.
The top four seeds received a bye into the second round.
