The 2018 Moneta Czech Open was a professional tennis tournament played on clay courts. It was the 25th edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Prostějov, Czech Republic between 4–9 June 2018.
Singles main-draw entrants
Seeds
1 Rankings are as of 28 May 2018.
Other entrants
The following players received wildcards into the singles main draw: Thomaz Bellucci Pablo Cuevas Filip Horanský Václav Šafránek
The following players received entry into the singles main draw as alternates: Benjamin Bonzi Vincent Millot
The following players received entry from the qualifying draw: Martín Cuevas Federico Gaio Gianluca Mager Jan Šátral
The following player received entry as a lucky loser: Marek Jaloviec
Champions
Singles
Jaume Munar def. Laslo Đere 6–1, 6–3.
Doubles
Denys Molchanov / Igor Zelenay def. Martín Cuevas / Pablo Cuevas 4–6, 6–3, [10–7].