2009 ATP Studena Croatia Open Umag
The 2009 ATP Studena Croatia Open Umag was a tennis tournament played on outdoor red clay courts. It was the 20th edition of the event known that year as the ATP Studena Croatia Open Umag and was part of the ATP World Tour 250 series of the 2009 ATP World Tour. It took place at the International Tennis Center in Umag, Croatia, from July 27 through August 2, 2009.Entrants
Seeds
| Country | Player | Rank | Seed |
| | 12 | 1 |
| | 23 | 2 |
| | 26 | 3 |
| | 33 | 4 |
| | 35 | 5 |
| | 40 | 6 |
| | 46 | 7 |
| | 47 | 8 |
- Seedings based on the July 20, 2009 rankings.
Other Entrants
The following players received wildcards into the singles main draw
The following players received entry from the qualifying draw:
Singles
Nikolay Davydenko def. Juan Carlos Ferrero, 6–3, 6–0.
- It was Davydenko's second title of the year and 16th of his career.
Doubles
František Čermák / Michal Mertiňák def. Johan Brunström / Jean-Julien Rojer, 6–4, 6–4.
