2008 İstanbul Cup
Date	19–24 May
Edition	4th
Category	Tier III Series
Draw	30S / 16D
Prize money	$200,000
Surface	Clay / outdoor
Location	Istanbul, Turkey
Champions
Singles
Agnieszka Radwańska
Doubles
Jill Craybas / Olga Govortsova
← 2007 · İstanbul Cup · 2009 →

The 2008 Istanbul Cup was a women's tennis tournament played on outdoor clay courts. It was the 4th edition of the Istanbul Cup, and was part of the Tier III Series of the 2008 WTA Tour. It took place in Istanbul, Turkey, from 19 May through 24 May 2008. Second-seeded Agnieszka Radwańska won the singles title and earned $30,500 first-prize money.

Agnieszka Radwańska defeated Elena Dementieva, 6–3, 6–2

• It was Agnieszka Radwańska's 2nd title of the year, and her 3rd overall.

Jill Craybas / Olga Govortsova defeated Marina Erakovic / Polona Hercog, 6–1, 6–2

• Official website
• ITF tournament edition details Archived 2021-01-21 at the Wayback Machine
• Tournament draws