The 2023 Layjet Open was a professional tennis tournament played on clay courts. It was the 1st edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Bad Waltersdorf, Austria between 18 and 24 September 2023.
Singles main-draw entrants
Seeds
1 Rankings are as of 11 September 2023.
Other entrants
The following players received wildcards into the singles main draw: Fabio Fognini Joel Schwärzler Sebastian Sorger
The following players received entry from the qualifying draw: Ergi Kırkın Marvin Möller Petr Nouza Andrea Picchione Henri Squire Timo Stodder
The following players received entry as lucky losers: Maks Kaśnikowski Sandro Kopp
Champions
Singles
Andrea Pellegrino def. Dennis Novak 1–6, 7–6(7–5), 6–3.
Doubles
Constantin Frantzen / Hendrik Jebens def. Marco Bortolotti / Francesco Passaro 6–1, 6–2.