Dinara Safina was the defending champion in the Women's Singles event in the 2003 Idea Prokom Open, a Polish tennis competition.

She retired in her quarter-final match against Anna Pistolesi.

Pistolesi won the title by defeating Klára Koukalová 6–2, 6–0 in the final.

[1][2] The first two seeds received a bye into the second round.