The 2015 İstanbul Cup (also known as the TEB BNP Paribas İstanbul Cup for sponsorship reasons) was a tennis tournament played on outdoor hard courts.

It was the 8th edition of the İstanbul Cup, and part of the WTA International tournaments of the 2015 WTA Tour.

It took place in Istanbul, Turkey, from July 20 through July 27, 2015.

[1] The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw: The following pairs received wildcards into the doublesmain draw: The following pair received entry as alternates: