2023 IBG Prague Open

Country	Player	Rank1	Seed
AUT	Lukas Neumayer	223	1
ITA	Francesco Maestrelli	246	2
ITA	Luciano Darderi	250	3
GER	Rudolf Molleker	266	4
POR	João Sousa	270	5
GER	Henri Squire	276	6
FRA	Mathias Bourgue	277	7
MON	Valentin Vacherot	286	8

• ¹ Rankings as of 14 August 2023.^[1]

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

• Rudolf Molleker def. Gabriel Debru 6–2, 6–2.

• Petr Nouza / Andrew Paulson def. Filip Bergevi / Mick Veldheer 7–5, 6–3.