The 2023 IBG Prague Open was a professional tennis tournament played on clay courts. It was part of the 2023 ATP Challenger Tour. It took place in Prague, Czech Republic between 21 and 26 August 2023.
Singles main-draw entrants
Seeds
1 Rankings as of 14 August 2023.
Other entrants
The following players received wildcards into the singles main draw: Hynek Bartoň Jonáš Forejtek Toby Kodat
The following player received entry into the singles main draw using a protected ranking: Carlos López Montagud
The following players received entry from the qualifying draw: Paweł Ciaś Gabriel Debru Federico Agustín Gómez Kirill Kivattsev Jakub Nicod Michael Vrbenský
Champions
Singles
Rudolf Molleker def. Gabriel Debru 6–2, 6–2.
Doubles
Petr Nouza / Andrew Paulson def. Filip Bergevi / Mick Veldheer 7–5, 6–3.