| 2018 Hungarian Challenger Open | |
|---|---|
| Date | 5–11 February |
| Edition | 3rd |
| Surface | Hard (indoor) |
| Location | Budapest, Hungary |
| Champions | |
| Singles | |
 Vasek Pospisil | |
| Doubles | |
Félix Auger-Aliassime /  Nicola Kuhn | |
The 2018 Hungarian Challenger Open was a professional tennis tournament played on indoor hard courts. It was the third edition of the tournament and was a part of the 2018 ATP Challenger Tour. It took place in Budapest, Hungary between 5 and 11 February 2018.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 HUN | Márton Fucsovics | 63 | 1 |
| CAN | Vasek Pospisil | 85 | 2 |
 FRA | Quentin Halys | 119 | 3 |
 SWE | Elias Ymer | 135 | 4 |
| CAN | Félix Auger-Aliassime | 163 | 5 |
 EST | Jürgen Zopp | 171 | 6 |
 CRO | Viktor Galović | 181 | 7 |
 SRB | Nikola Milojević | 183 | 8 |
The following players received wildcards into the singles main draw:
The following player received entry into the singles main draw as an alternate:
The following players received entry from the qualifying draw:
Jeremy Jahn Kevin Krawietz Constant Lestienne 
Andrea Pellegrino Vasek Pospisil def. Nicola Kuhn 7–6(7–3), 3–6, 6–3. Félix Auger-Aliassime / Nicola Kuhn def. Marin Draganja / Tomislav Draganja 2–6, 6–2, [11–9].