| 2017 Croatia Open Umag | ||||
|---|---|---|---|---|
| Date | 17–23 July | |||
| Edition | 28th | |||
| Category | ATP World Tour 250 | |||
| Draw | 28S / 16D | |||
| Prize money | €482,060 | |||
| Surface | Clay | |||
| Location | Umag,Croatia | |||
| Champions | ||||
| Singles | ||||
 Andrey Rublev | ||||
| Doubles | ||||
 Guillermo Durán /Andrés Molteni | ||||
| ||||
The2017 Croatia Open Umag (also known as thePlava Laguna Croatia Open Umag for sponsorship reasons) was a men'stennis tournament played on outdoorclay courts. It was the 28th edition of theCroatia Open, and part of theWorld Tour 250 Series tier of the2017 ATP World Tour. It took place at the International Tennis Center inUmag,Croatia, from 17 July through 23 July 2017. UnseededAndrey Rublev, who entered the main draw as alucky loser, won the singles title.
Andrey Rublev defeated
Paolo Lorenzi, 6–4, 6–2
Guillermo Durán /Andrés Molteni defeated
Marin Draganja /Tomislav Draganja, 6–3, 6–7(4–7), [10–6]
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 BEL | David Goffin | 13 | 1 |
 FRA | Gaël Monfils | 14 | 2 |
| ITA | Fabio Fognini | 29 | 3 |
| ITA | Paolo Lorenzi | 33 | 4 |
| FRA | Gilles Simon | 36 | 5 |
| CRO | |||
| FRA | Benoît Paire | 46 | 7 |
 CZE | Jiří Veselý | 48 | 8 |
The following players receivedwildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
Borna Ćorić →replaced byAndrey Rublev
Andreas Haider-Maurer →replaced byAlessandro Giannessi
Martin Kližan →replaced byAndrej Martin
Philipp Kohlschreiber →replaced byMarco Cecchinato
Yūichi Sugita →replaced byNorbert Gombos| Country | Player | Country | Player | Rank1 | Seed |
|---|---|---|---|---|---|
 BLR | Max Mirnyi |  CAN | Daniel Nestor | 66 | 1 |
| CRO | Ivan Dodig | CRO | Franko Škugor | 100 | 2 |
| ARG | Guillermo Durán | ARG | Andrés Molteni | 132 | 3 |
 USA | James Cerretani | USA | Max Schnur | 188 | 4 |
The following pairs received wildcards into the doubles main draw:
