Iveta Benešová and Barbora Záhlavová-Strýcová were the defending champions but chose to participate at the 2012 Dubai Tennis Championships instead.
Mariya Koryttseva and Raluca Olaru were the defending champions but Olaru decided not to participate.
Koryttseva played alongside Darija Jurak but lost in the quarterfinals to Gisela Dulko and Paola Suárez.
Sara Errani and Roberta Vinci defeated Lourdes Domínguez Lino and Arantxa Parra Santonja 6–2, 6–1 in the final to win the title.
Iveta Benešová and Barbora Záhlavová-Strýcová were the defending champions but Benešová decided not to participate.
Záhlavová-Strýcová plays alongside Petra Cetkovská, but they were knocked out in the semifinals by the top-seeded pair of Sara Errani and Roberta Vinci who beat Francesca Schiavone and Flavia Pennetta 6–0, 6–2 in an all-Italian final.
Sara Errani and Roberta Vinci were the defending champions but decided not to participate.
In the final Renata Voráčová and Barbora Záhlavová-Strýcová defeated Darija Jurak and Katalin Marosi 7–6(7–5), 6–4.
Sara Errani and Roberta Vinci were the defending champions, but lost in the final to Ekaterina Makarova and Elena Vesnina 5–7, 2–6.
This was a new event to the WTA 125K series.
Alla Kudryavtseva and Anastasia Rodionova were the defending champions, but chose not to participate.
Kiki Bertens and Johanna Larsson were the defending champions, but withdrew from their semifinal match.
Han Xinyun and Christina McHale won the title, defeating Kimberly Birrell and Jarmila Wolfe in the final, 6–3, 6–0.
Martina Hingis and Sania Mirza were the defending champions, but chose not to participate together. Mirza teamed up with Barbora Strýcová, but lost in the quarterfinals to Caroline Garcia and Kristina Mladenovic. Hingis played alongside CoCo Vandeweghe, but lost in the semifinals to Garcia and Mladenovic.
Martina Hingis and Sania Mirza were the defending champions, but Mirza chose not to participate this year. Hingis played alongside Belinda Bencic, but lost in the first round to Gabriela Dabrowski and Michaëlla Krajicek.
Maria Sharapova defeated Aryna Sabalenka in the final, 7–5, 7–6(10–8) to win the singles tennis title at the 2017 Tianjin Open. It was Sharapova's first title since serving a suspension for a doping offense, and her final career title before retiring in 2020.
Kiki Bertens and Johanna Larsson were the defending champions, but Bertens chose to compete in Brisbane instead and Larsson chose not to participate this year.
Kiki Bertens and Johanna Larsson were the defending champions, but Bertens chose not to participate this year. Larsson played alongside Eugenie Bouchard, but lost in the first round to Rika Fujiwara and Darija Jurak.
Shuko Aoyama and Renata Voráčová were the defending champions, but lost in the quarterfinals to Kristie Ahn and Lauren Davis.
Irina-Camelia Begu and Sara Errani were the defending champions, but Errani is serving a doping suspension. Begu played alongside Barbora Krejčíková, but they lost in the quarterfinals to Han Xinyun and Darija Jurak.
Mihaela Buzărnescu and Raluca Olaru were the defending champions, but Buzărnescu chose not to participate this year. Olaru played alongside Darija Jurak, but lost in the semifinals to Daria Gavrilova and Ellen Perez.
Han Xinyun and Darija Jurak were the defending champions but both players chose not to participate.
Shuko Aoyama and Erika Sema were the defending champions, having won the last edition in 2012 as an ITF tournament, but Sema chose not to participate. Aoyama partnered alongside Aleksandra Krunić, but lost in the semifinals to Margarita Gasparyan and Monica Niculescu.
Duan Yingying and Wang Yafan were the defending champions, but Wang chose to compete in Nanchang instead. Duan played alongside Zheng Saisai, but lost in the first round to Lesley Pattinama Kerkhove and Bibiane Schoofs.
Nicole Melichar and Květa Peschke were the defending champions but Melichar chose not to participate. Peschke partnered alongside Ellen Perez but lost in the semifinals to Gabriela Dabrowski and Luisa Stefani.
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Eugenie Bouchard 
Sofia Kenin 
Paige Mary Hourigan 
