2005 İstanbul Cup

The 2005 İstanbul Cup was a tennis tournament played on outdoor clay courts. It was the first edition of the İstanbul Cup, and was part of the WTA Tier III tournaments of the 2005 WTA Tour. It was held in Istanbul from 16 through 21 May 2005.

Prize money

 * per team

Other entrants
The following players received wildcards into the singles main draw:
 * 🇹🇷 Çağla Büyükakçay
 * 🇹🇷 Pemra Özgen

The following players received entry from the qualifying draw:
 * Ivana Abramović
 * 🇧🇬 Tsvetana Pironkova
 * 🇱🇹 Lina Stančiūtė
 * 🇷🇺 Elena Vesnina

The following players received entry as lucky losers:
 * 🇺🇦 Katerina Bondarenko

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇷🇺 Anna Chakvetadze / 🇹🇷 Pemra Özgen

Singles
🇺🇸 Venus Williams defeated 🇨🇿 Nicole Vaidišová, 6–3, 6–2

Doubles
🇪🇸 Marta Marrero / 🇮🇹 Antonella Serra Zanetti defeated 🇦🇹 Daniela Klemenschits / 🇦🇹 Sandra Klemenschits, 6–4, 6–0