| Singles | |
|---|---|
| 2003 Croatia Open | |
| 2002 Champion |
|
| Champion |
|
| Runner-up |
|
| Final score | 6–4, 3–6, 7–5 |
Carlos Moyá was the defending champion and won in the final 6–4, 3–6, 7–5 against Filippo Volandri.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.