- Source: 2024 Ostra Group Open
The 2024 Ostra Group Open was a professional tennis tournament played on clay courts. It was the 21st edition of the tournament which was part of the 2024 ATP Challenger Tour. It took place in Ostrava, Czech Republic between 22 and 28 April 2024.
Singles main-draw entrants
= Seeds
=1 Rankings are as of 15 April 2024.
= Other entrants
=The following players received wildcards into the singles main draw:
Jan Jermář
Jan Kumstát
Peter Benjamín Privara
The following players received entry from the qualifying draw:
Buvaysar Gadamauri
Norbert Gombos
Dominik Kellovský
Jakub Nicod
David Pichler
Jelle Sels
Champions
= Singles
=Damir Džumhur def. Henri Squire 6–2, 4–6, 7–5.
= Doubles
=Jaime Faria / Henrique Rocha def. Jakob Schnaitter / Mark Wallner 7–5, 6–3.