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.

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

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.