The 2005 Ordina Open was a tennis tournament played on grass courts in 's-Hertogenbosch in the Netherlands that was part of the International Series of the 2005 ATP Tour and of Tier III of the 2003 WTA Tour. The tournament was held from June 13 through June 19, 2005.
Mario Ančić defeated Michaël Llodra 7–5, 6–4
Klára Koukalová defeated Lucie Šafářová 3–6, 6–2, 6–2
Cyril Suk / Pavel Vízner defeated Tomáš Cibulec / Leoš Friedl 6–3, 6–4
Anabel Medina / Dinara Safina defeated Iveta Benešová / Nuria Llagostera 6–4, 2–6, 7–6