The 2017 UniCredit Czech Open was a professional tennis tournament played on clay courts. It was the 24th edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Prostějov, Czech Republic between 5–10 June 2017.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Slovakia | Martin Kližan | 50 | 1 | |
 Czech Republic | Jiří Veselý | 57 | 2 | |
 Georgia | Nikoloz Basilashvili | 63 | 3 | |
 Kazakhstan | Mikhail Kukushkin | 85 | 4 | |
 Argentina | Nicolás Kicker | 87 | 5 | |
 Moldova, Republic of | Radu Albot | 88 | 6 | |
| Slovakia | Norbert Gombos | 93 | 7 | |
| Czech Republic | Adam Pavlásek | 97 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry into the singles main draw as alternates:
The following players received entry from the qualifying draw:
Markus Eriksson
Maxime Janvier Petr MichnevSee main article: 2017 UniCredit Czech Open – Singles.
Jiří Veselý def. Federico Delbonis 5–7, 6–1, 7–5.See main article: 2017 UniCredit Czech Open – Doubles.
Guillermo Durán / Andrés Molteni def. Roman Jebavý / Hans Podlipnik Castillo 7–6(7–5), 6–7(5–7), [10–6].
