See main article: 2003 Croatian Bol Ladies Open.
Tathiana Garbin and Angelique Widjaja were the defending champions, but Widjaja did not compete this year. Garbin teamed up with Caroline Schneider and lost in quarterfinals to tournament winners Petra Mandula and Patricia Wartusch.
Petra Mandula and Patricia Wartusch won the title by defeating Emmanuelle Gagliardi and Patty Schnyder 6–3, 6–2 in the final.[1]