2005 Croatia Open Umag – Singles
| Singles | |
|---|---|
| 2005 Croatia Open Umag | |
| Champion | Guillermo Coria |
| Runner-up | Carlos Moyá |
| Score | 6–2, 4–6, 6–2 |
| Draw | 32 (4 Q / 3 WC ) |
| Seeds | 8 |
Guillermo Cañas was the defending champion, but did not participate.
Guillermo Coria won the title, defeating Carlos Moyá 6–2, 4–6, 6–2 in the final.