2015 Istanbul Open
The 2015 Istanbul Open was a men's tennis tournament played on outdoor clay courts. It was part of the 2015 ATP World Tour. It was the first edition of the Istanbul Open, and an ATP World Tour 250 event. It took place at the Koza World of Sports Arena in Istanbul, Turkey, from 27 April through 3 May 2015.Seeds
- Rankings are as of April 20, 2015.
Other entrants
The following players received wildcards into the main draw:
The following players received entry via the qualifying draw:
;Before the tournament
Seeds
The following pair received wildcards into the doubles main draw:
The following pair received entry as alternates:
;Before the tournament
Singles
