The 2003 Croatian Bol Ladies Open was a women's tennis tournament played on outdoor clay courts in Bol, Croatia and was part of the Tier III category of the 2003 WTA Tour. It was the tenth edition of the tournament and was held from 28 April until 4 May 2003. Third-seeded Vera Zvonareva won the singles title and earned $27,000 first-prize money.
| 2003 Croatian Bol Ladies Open | |
|---|---|
| Date | 28 April – 4 May |
| Edition | 10th |
| Category | Tier III |
| Draw | 30S / 16D |
| Prize money | $170,000 |
| Surface | Clay / outdoor |
| Location | Bol, Croatia |
| Champions | |
| Singles | |
 Vera Zvonareva | |
| Doubles | |
 Petra Mandula /  Patricia Wartusch | |
Finals edit
Singles edit
Vera Zvonareva defeated 
Conchita Martínez Granados 6–1, 6–3
- It was Zvonareva's first singles title of her career.
Doubles edit
Petra Mandula / Patricia Wartusch defeated 
Emmanuelle Gagliardi / Patty Schnyder 6–3, 6–2