2023-09-18 Bad Waltersdorf (c)

The 2023 ATP Challenger Bad Waltersdorf (known as Layjet Open for sponsorship reasons) was a men's tennis tournament played on outdoor clay courts in Bad Waltersdorf, Austria, that was part of the Challenger 125 series of tournaments on the 2023 ATP Challenger Tour. It was the 1st edition of the ATP Challenger Bad Waltersdorfand was held 18–24 September.