The 2010 Studena Croatia Open Umag was a tennis tournament played on outdoor clay courts. It was the 21st edition of the Croatia Open Umag, and was part of the ATP World Tour 250 Series of the 2010 ATP World Tour. It took place at the International Tennis Center in Umag, Croatia, from July 26 through August 1, 2010.
| 2010 ATP Studena Croatia Open Umag | |
|---|---|
| Date | 26 July – 1 August |
| Edition | 21st |
| Category | ATP World Tour 250 |
| Surface | Clay / outdoor |
| Location | Umag, Croatia |
| Venue | International Tennis Center |
| Champions | |
| Singles | |
 Juan Carlos Ferrero | |
| Doubles | |
 Leoš Friedl /  Filip Polášek | |
ATP entrants edit
Seeds edit
| Player | Nation | Ranking* | Seeding |
|---|---|---|---|
| Nikolay Davydenko |  RUS
|
6 | 1 |
| Jürgen Melzer |  AUT
|
15 | 2 |
| Ivan Ljubičić |  CRO
|
16 | 3 |
| Juan Carlos Ferrero | ESP
|
21 | 4 |
| Philipp Petzschner |  GER
|
37 | 5 |
| Alexandr Dolgopolov |  UKR
|
39 | 6 |
| Sergiy Stakhovsky | UKR
|
48 | 7 |
| Juan Ignacio Chela |  ARG
|
53 | 8 |
*Seedings based on the July 19, 2010 rankings.
Other entrants edit
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Finals edit
Singles edit
Juan Carlos Ferrero defeated 
Potito Starace, 6–4, 6–4
- It was Ferrero's third title of the year and 15th of his career.
Doubles edit
Leoš Friedl / Filip Polášek defeated František Čermák / Michal Mertiňák, 6–3, 7–6(9–7)