2016 İstanbul Cup
The 2016 İstanbul Cup was a women's tennis tournament played on outdoor clay courts. It was the 9th edition of the İstanbul Cup, and part of the WTA International tournaments of the 2016 WTA Tour. It took place at the Garanti Koza Arena in Istanbul, Turkey, from 18 April through 24 April 2016. Unseeded Çağla Büyükakçay won the singles title.
Security concerns and withdrawals
Due to the tense security situation in Turkey following a number of terrorist attacks in February and March the WTA allowed registered players to withdraw from the tournament without penalty. Additionally, the players were given the opportunity to register at short notice for another tournament, such as the Stuttgart Open in Germany, a premier tournament held in the same week.Finals
Singles
Çağla Büyükakçay defeated Danka Kovinić, 3–6, 6–2, 6–3- It was Büyükakçay's only WTA singles title of her career.
Doubles
Andreea Mitu / İpek Soylu defeated Xenia Knoll / Danka Kovinić, walkoverSingles main-draw entrants
Seeds
- Rankings are as of April 11, 2016.
Other entrants
The following players received wildcardThe following players received entry from the qualifying draw:
Withdrawals
;Before the tournamentDue to security concerns, the WTA allowed players to withdraw and enter other WTA/ITF tournaments without penalty.
- Victoria Azarenka → replaced by Alexandra Dulgheru
- Petra Cetkovská → replaced by Çağla Büyükakçay
- Irina Falconi → replaced by Stefanie Vögele
- Camila Giorgi → replaced by Tsvetana Pironkova
- Lucie Hradecká → replaced by Donna Vekić
- Yulia Putintseva → replaced by Kateryna Kozlova
- Laura Robson → replaced by Kurumi Nara
- Yaroslava Shvedova → replaced by Anastasija Sevastova
- Alison Van Uytvanck → replaced by Olga Govortsova
- Heather Watson → replaced by Aliaksandra Sasnovich
- Caroline Wozniacki → replaced by Andreea Mitu