The 2003 Ordina Open was a tennis tournament played on grass courts in Rosmalen, 's-Hertogenbosch in the Netherlands that was part of the International Series of the 2003 ATP Tour and of Tier III of the 2003 WTA Tour.

The tournament was held from 16 June until 22 June 2003.

Sjeng Schalken and Kim Clijsters won the singles titles.

Sjeng Schalken defeated Arnaud Clément 6–3, 6–4 Kim Clijsters defeated Justine Henin-Hardenne 6–7(4–7), 3–0 (Henin-Hardenne retired) Martin Damm / Cyril Suk defeated Donald Johnson / Leander Paes 7–5, 7–6(7–4) Elena Dementieva / Lina Krasnoroutskaya defeated Nadia Petrova / Mary Pierce 2–6, 6–3, 6–4