2005 İstanbul Cup – Singles

This was the first time a WTA level was held in Istanbul.Top seed Venus Williams won the title, defeating Nicole Vaidišová in the final, 6–3, 6–2.

Seeds
The top two seeds received a bye into the second round. • # 🇺🇸 Venus Williams (champion)

• # 🇨🇿 Nicole Vaidišová (final)

• # 🇮🇱 Anna Smashnova (semifinals)

• # 🇺🇸 Lisa Raymond (first round)

• # 🇩🇪 Anna-Lena Grönefeld (quarterfinals)

• # 🇺🇸 Meghann Shaughnessy (first round)

• # 🇷🇺 Anna Chakvetadze (quarterfinals)

• # 🇺🇸 Mashona Washington (quarterfinals)