| 2019 Hungarian Challenger Open | |
|---|---|
| Date | 4–10 February |
| Edition | 4th |
| Surface | Hard (indoor) |
| Location | Budapest, Hungary |
| Champions | |
| Singles | |
 Alexander Bublik | |
| Doubles | |
 Kevin Krawietz /  Filip Polášek | |
The 2019 Hungarian Challenger Open was a professional tennis tournament played on indoor hard courts. It was the fourth edition of the tournament and was a part of the 2019 ATP Challenger Tour. It took place in Budapest, Hungary between 4 and 10 February 2019.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 IND | Ramkumar Ramanathan | 133 | 1 |
 CZE | Lukáš Rosol | 140 | 2 |
 EST | Jürgen Zopp | 149 | 3 |
 AUT | Dennis Novak | 154 | 4 |
 FRA | Grégoire Barrère | 155 | 5 |
| GER | Oscar Otte | 165 | 6 |
 ITA | Filippo Baldi | 166 | 7 |
| KAZ | Alexander Bublik | 171 | 8 |
 SRB | Nikola Milojević | 174 | 9 |
 BEL | Kimmer Coppejans | 195 | 10 |
 NED | Tallon Griekspoor | 211 | 11 |
| SVK | Filip Horanský | 219 | 12 |
| FRA | Maxime Janvier | 222 | 13 |
 CRO | Viktor Galović | 230 | 14 |
| CZE | Zdeněk Kolář | 231 | 15 |
| GER | Kevin Krawietz | 232 | 16 |
The following players received wildcards into the singles main draw:
The following player received entry into the singles main draw as a special exempt:
The following player received entry into the singles main draw using a protected ranking:
The following players received entry into the singles main draw as alternates:
The following players received entry into the singles main draw using their ITF World Tennis Ranking:
Baptiste Crepatte Peter Heller
Aslan Karatsev Fabien Reboul The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
Alexander Bublik def. Roberto Marcora 6–0, 6–3. Kevin Krawietz / Filip Polášek def. Filippo Baldi / 
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