The 2023 Platzmann-Sauerland Open was a professional tennis tournament played on clay courts. It was the third edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Lüdenscheid, Germany, between 31 July and 5 August 2023.
Singles main draw entrants
Seeds
1 Rankings as of 24 July 2023.
Other entrants
The following players received wildcards into the singles main draw: Liam Gavrielides Max Hans Rehberg Louis Wessels
The following player received entry into the singles main draw as an alternate: Henri Squire
The following players received entry from the qualifying draw: Duje Ajduković Tommaso Compagnucci Georgii Kravchenko Marvin Möller Hazem Naw Marcelo Zormann
Champions
Singles
Duje Ajduković def. Hugo Dellien 7–5, 6–4.
Doubles
Luca Margaroli / Santiago Rodríguez Taverna def. Jakob Schnaitter / Kai Wehnelt 7–6(7–4), 6–4.