| 2019 Croatia Open Umag | |
|---|---|
| Date | 15–21 July |
| Edition | 30th |
| Category | ATP Tour 250 |
| Draw | 28S/16D |
| Prize money | €482,060 |
| Surface | Clay |
| Location | Umag,Croatia |
| Champions | |
| Singles | |
 Dušan Lajović | |
| Doubles | |
 Robin Haase / Philipp Oswald | |
The2019 Croatia Open (also known as thePlava Laguna Croatia Open Umag for sponsorship reasons) was a men'stennis tournament played on outdoorclay courts. It was the 30th edition of theCroatia Open, and part of the250 Series of the2019 ATP Tour. It took place at the International Tennis Center inUmag,Croatia, from 15 July through 21 July 2019. Fourth-seededDušan Lajović won the singles title.[1]
Dušan Lajović defeated
Attila Balázs, 7–5, 7–5
Robin Haase /Philipp Oswald defeatedOliver Marach /Jürgen Melzer, 7–5, 6–7(2–7), [14–12]
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 ITA | Fabio Fognini | 10 | 1 |
 CRO | Borna Ćorić | 14 | 2 |
| SRB | Laslo Đere | 35 | 3 |
| SRB | Dušan Lajović | 36 | 4 |
| ITA | Marco Cecchinato | 41 | 5 |
| SRB | Filip Krajinović | 52 | 6 |
 SVK | Martin Kližan | 56 | 7 |
 ARG | Leonardo Mayer | 59 | 8 |
The following players receivedwildcards into the singles main draw:
The following player received entry using a protected ranking into the main draw:
The following players received entry from the qualifying draw:
Márton Fucsovics → replaced byFacundo Bagnis
Malek Jaziri → replaced by
Pedro SousaGuido Pella → replaced byStefano Travaglia| Country | Player | Country | Player | Rank1 | Seed |
|---|---|---|---|---|---|
| AUT | Oliver Marach | AUT | Jürgen Melzer | 64 | 1 |
| NED | Robin Haase | AUT | Philipp Oswald | 102 | 2 |
 UKR | Denys Molchanov | SVK | Igor Zelenay | 131 | 3 |
| ARG | Leonardo Mayer | ARG | Andrés Molteni | 141 | 4 |
The following pairs received wildcards into the doubles main draw:
The following pair received entry as alternates:
