| 2018 Prosperita Open | |
|---|---|
| Date | 30 April – 6 May |
| Edition | 15th |
| Draw | 32S / 16D |
| Surface | Clay |
| Location | Ostrava, Czech Republic |
| Champions | |
| Singles | |
 Arthur De Greef | |
| Doubles | |
 Attila Balázs /  Gonçalo Oliveira | |
The 2018 Prosperita Open was a professional tennis tournament played on clay courts. It was the 15th edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Ostrava, Czech Republic between 30 April and 6 May.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| BEL | Ruben Bemelmans | 107 | 1 |
 UKR | Sergiy Stakhovsky | 122 | 2 |
| HUN | Attila Balázs | 163 | 3 |
 FRA | Gleb Sakharov | 187 | 4 |
| FRA | Benjamin Bonzi | 198 | 5 |
| POR | Gonçalo Oliveira | 212 | 6 |
 CZE | Adam Pavlásek | 218 | 7 |
 IND | Sumit Nagal | 219 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Arthur De Greef def. 
Nino Serdarušić 4–6, 6–4, 6–2. Attila Balázs / Gonçalo Oliveira def. Lukáš Rosol / Sergiy Stakhovsky 6–0, 7–5.