Elina Svitolina was the defending champion, but chose not to participate this year.
Vitalia Diatchenko was the defending champion, but chose not to participate.
Carina Witthöft was the defending champion, but chose not to participate.
Kiki Bertens and Johanna Larsson were the defending champions, but lost in the quarterfinals to Andreea Mitu and Alicja Rosolska.
Carolin Daniels and Lidziya Marozava were the defending champions, but chose not to participate.
Andreea Mitu and Monica Niculescu were the defending champions, but Niculescu chose not to participate. Mitu played alongside Patricia Maria Țig, but lost in the first round to Nao Hibino and Alicja Rosolska.
Çağla Büyükakçay and Maria Sakkari were the defending champions, but Sakkari chose not to participate. Büyükakçay partnered Mona Barthel, but lost in the quarterfinals to Lesley Kerkhove and Lidziya Marozava.
Ankita Raina and Emily Webley-Smith were the defending champions, but both players chose not to participate.
Shuko Aoyama and Makoto Ninomiya were the defending champions, but Aoyama chose not to participate. Ninomiya partnered Akiko Omae, and lost in the quarterfinals to Eri Hozumi and Valeria Savinykh.
Simona Halep was the defending champion, but chose not to participate this year.
Asia Muhammad and Peng Shuai were the defending champions, but chose not to participate this year.
Kiki Bertens and Johanna Larsson were the defending champions, but withdrew from their first round match.
Eri Hozumi and Miyu Kato were the defending champions, but Kato chose not to participate this year. Hozumi played alongside Asia Muhammad, but lost in the final to sisters Hsieh Shu-ying and Hsieh Su-wei, 1–6, 6–7(3–7).
Mandy Minella and Nina Stojanović were the defending champions, however both players chose not to participate.
Hsieh Su-wei and Oksana Kalashnikova were the defending champions, but Hsieh chose to compete in Dubai instead. Kalashnikova played alongside Natela Dzalamidze, but lost in the quarterfinals to Irina Bara and Mihaela Buzărnescu.
Lesley Kerkhove and Lidziya Marozava were the defending champions, but Marozava chose not to participate.
Nao Hibino and Alicja Rosolska were the defending champions, but Rosolska chose to compete in Charleston instead. Hibino played alongside Darija Jurak, but lost in the quarterfinals to Valeria Savinykh and Yana Sizikova.
Anna-Lena Grönefeld and Květa Peschke were the defending champions, but chose not to participate together. Grönefeld was scheduled to play alongside Raquel Atawo, but the pair withdrew due to Atawo's abductor injury. Peschke teamed up with Nicole Melichar and successfully defended the title, defeating Mihaela Buzărnescu and Lidziya Marozava in the final, 6–4, 6–2.
Nicole Melichar and Anna Smith were the defending champions, but Smith chose to compete in Strasbourg instead. Melichar played alongside Květa Peschke, but lost in the semifinals to Demi Schuurs and Katarina Srebotnik.
Dominika Cibulková and Kirsten Flipkens were the defending champions, but Cibulková chose not to participate this year. Flipkens played alongside Kiki Bertens, but lost in the final to Elise Mertens and Demi Schuurs when Flipkens had to retire with the score at 3–3.
