2023 IBG Prague Open

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.

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

Singles

 * 🇩🇪 Rudolf Molleker def. 🇫🇷 Gabriel Debru 6–2, 6–2.

Doubles

 * 🇨🇿 Petr Nouza / 🇨🇿 Andrew Paulson def. 🇸🇪 Filip Bergevi / Mick Veldheer 7–5, 6–3.