| Women's doubles | |
|---|---|
| 2018 China Open | |
| Champions |  Andrea Sestini Hlaváčková Barbora Strýcová |
| Runners-up |  Gabriela Dabrowski  Xu Yifan |
| Final score | 4–6, 6–4, [10–8] |
Latisha Chan and Martina Hingis were the defending champions, but Hingis retired from professional tennis at the end of 2017 and Chan could not participate due to a medical condition.
Andrea Sestini Hlaváčková and Barbora Strýcová won the title, defeating Gabriela Dabrowski and Xu Yifan in the final, 4–6, 6–4, [10–8].
The top four seeds received a bye into the second round.
Tímea Babos / 
Kristina Mladenovic (quarterfinals) Andrea Sestini Hlaváčková / Barbora Strýcová (champions) Gabriela Dabrowski / Xu Yifan (final)
Elise Mertens / 
Demi Schuurs (semifinals)
Nicole Melichar / Květa Peschke (quarterfinals)
Andreja Klepač / 
María José Martínez Sánchez (quarterfinals) Lucie Hradecká / 
Ekaterina Makarova (semifinals)
Chan Hao-ching / Yang Zhaoxuan (first round)| Semifinals | Final | ||||||||||||
| 7 | Lucie Hradecká Ekaterina Makarova | 3 | 2 | ||||||||||
| 3 | Gabriela Dabrowski Xu Yifan | 6 | 6 | ||||||||||
| 3 | Gabriela Dabrowski Xu Yifan | 6 | 4 | [8] | |||||||||
| 2 | Andrea Sestini Hlaváčková Barbora Strýcová | 4 | 6 | [10] | |||||||||
| 4 | Elise Mertens Demi Schuurs | 0 | 5 | ||||||||||
| 2 | Andrea Sestini Hlaváčková Barbora Strýcová | 6 | 7 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | T Babos K Mladenovic | 77 | 6 | ||||||||||||||||||||||||
| D Krawczyk S Santamaria | 5 | 6 | [7] | Alt | A Cornet  P Martić | 63 | 2 | ||||||||||||||||||||
| Alt | A Cornet P Martić | 7 | 3 | [10] | 1 | T Babos K Mladenovic | 4 | 6 | [5] | ||||||||||||||||||
 L Kichenok K Srebotnik | 77 | 6 | 7 | L Hradecká E Makarova | 6 | 2 | [10] | ||||||||||||||||||||
 M Kato M Ninomiya | 64 | 4 | L Kichenok K Srebotnik | 6 | 4 | [9] | |||||||||||||||||||||
K Flipkens  R Olaru | 2 | 6 | [7] | 7 | L Hradecká E Makarova | 3 | 6 | [11] | |||||||||||||||||||
| 7 | L Hradecká E Makarova | 6 | 2 | [10] | 7 | L Hradecká E Makarova | 3 | 2 | |||||||||||||||||||
| 3 | G Dabrowski Y Xu | 6 | 6 | ||||||||||||||||||||||||
| 3 | G Dabrowski Y Xu | 7 | 6 | ||||||||||||||||||||||||
| Alt |  M Linette S Zheng | 6 | 3 | [8] | N Kichenok  An Rodionova | 5 | 1 | ||||||||||||||||||||
| N Kichenok An Rodionova | 3 | 6 | [10] | 3 | G Dabrowski Y Xu | 6 | 7 | ||||||||||||||||||||
| A Rosolska A Spears | 6 | 4 | [10] | A Rosolska A Spears | 2 | 5 | |||||||||||||||||||||
M Adamczak  H Watson | 4 | 6 | [7] | A Rosolska A Spears | 4 | 6 | [11] | ||||||||||||||||||||
| M Buzărnescu M Niculescu | 6 | 6 | M Buzărnescu M Niculescu | 6 | 4 | [9] | |||||||||||||||||||||
| 8 | H-c Chan Z Yang | 3 | 3 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | N Melichar K Peschke | 6 | 4 | [10] | |||||||||||||||||||||||
| WC | Y Duan Y Wang | 1 | 6 | [7] | 5 | N Melichar K Peschke | 6 | 6 | |||||||||||||||||||
K Christian  O Kalashnikova | 5 | 64 | L Arruabarrena D Jurak | 3 | 2 | ||||||||||||||||||||||
| L Arruabarrena D Jurak | 7 | 77 | 5 | N Melichar K Peschke | 2 | 6 | [8] | ||||||||||||||||||||
| S-w Hsieh B Mattek-Sands | 4 | 6 | [10] | 4 | E Mertens D Schuurs | 6 | 3 | [10] | |||||||||||||||||||
A Pavlyuchenkova  A Sevastova | 6 | 3 | [12] | A Pavlyuchenkova A Sevastova | 5 | 2 | |||||||||||||||||||||
| 4 | E Mertens D Schuurs | 7 | 6 | ||||||||||||||||||||||||
| 4 | E Mertens D Schuurs | 0 | 5 | ||||||||||||||||||||||||
| 6 | A Klepač MJ Martínez Sánchez | 6 | 6 | 2 | A Sestini Hlaváčková B Strýcová | 6 | 7 | ||||||||||||||||||||
 T Bacsinszky A Tomljanović | 3 | 3 | 6 | A Klepač MJ Martínez Sánchez | 65 | 7 | [10] | ||||||||||||||||||||
S Aoyama  L Marozava | 6 | 4 | [3] | R Atawo  A-L Grönefeld | 77 | 5 | [7] | ||||||||||||||||||||
| R Atawo A-L Grönefeld | 3 | 6 | [10] | 6 | A Klepač MJ Martínez Sánchez | 3 | 0 | ||||||||||||||||||||
| WC | J Konta S Zhang | 6 | 5 | [6] | 2 | A Sestini Hlaváčková B Strýcová | 6 | 6 | |||||||||||||||||||
 A Krunić K Siniaková | 2 | 7 | [10] | A Krunić K Siniaková | 6 | 63 | [4] | ||||||||||||||||||||
| 2 | A Sestini Hlaváčková B Strýcová | 2 | 77 | [10] | |||||||||||||||||||||||
Bethanie Mattek-Sands and Lucie Šafářová were the defending champions, but lost in the second round to Andreja Klepač and María José Martínez Sánchez.
Martina Hingis and Sania Mirza were the defending champions, but chose not to participate together. Mirza played alongside Yaroslava Shvedova, but lost in the semifinals to Chan Yung-jan and Hingis.
Bethanie Mattek-Sands and Lucie Šafářová were the defending champions, but Mattek-Sands was unable to compete due to injury. Šafářová played alongside Barbora Strýcová, but lost in the semifinals to Lucie Hradecká and Kateřina Siniaková.
Bethanie Mattek-Sands and Lucie Šafářová were the defending champions, but neither player could participate this year due to injury.
Ekaterina Makarova and Elena Vesnina were the defending champions, but Vesnina was unable to compete due to an injury. Makarova played alongside Vera Zvonareva, but lost in the second round to Elise Mertens and Demi Schuurs.
Tímea Babos and Kristina Mladenovic won the women's doubles tennis title at the 2018 Australian Open, defeating Ekaterina Makarova and Elena Vesnina in the final, 6–4, 6–3. It was the first Grand Slam title for Babos, who became the first Hungarian player to win a Grand Slam event since Andrea Temesvári in the 1986 French Open and the second Grand Slam title for Mladenovic.
Ashleigh Barty and CoCo Vandeweghe defeated Tímea Babos and Kristina Mladenovic in the final, 3–6, 7–6(7–2), 7–6(8–6) to win the women's doubles tennis title at the 2018 US Open.
Tímea Babos and Anastasia Pavlyuchenkova were the defending champions, but chose not to participate this year.
Latisha Chan and Martina Hingis were the defending champions, but Hingis retired from professional tennis at the end of 2017. Chan played alongside her sister Chan Hao-ching, but lost in the second round to Hsieh Su-wei and Barbora Strýcová.
Gabriela Dabrowski and Xu Yifan were the defending champions, but lost in the first round to Elise Mertens and Demi Schuurs.
Latisha Chan and Martina Hingis were the defending champions, but Hingis retired from professional tennis at the end of 2017. Chan played alongside Bethanie Mattek-Sands, but lost in the quarterfinals to Andrea Sestini Hlaváčková and Barbora Strýcová.
Latisha Chan and Martina Hingis were the defending champions, but Hingis retired from professional tennis at the end of 2017. Chan played alongside Bethanie Mattek-Sands, but lost in the first round to Svetlana Kuznetsova and Karolína Plíšková.
Bethanie Mattek-Sands and Lucie Šafářová were the defending champions, but chose not to compete together this year. Mattek-Sands played alongside Latisha Chan, but lost in the second round to Irina Bara and Mihaela Buzărnescu. Šafářová teamed up with Svetlana Kuznetsova, but lost in the second round to Sorana Cîrstea and Sara Sorribes Tormo.
Latisha Chan and Martina Hingis were the defending champions, but Hingis retired from professional tennis at the end of 2017. Chan played alongside Peng Shuai, but they lost in the first round to Irina-Camelia Begu and Mihaela Buzărnescu.
Ekaterina Makarova and Elena Vesnina were the two-time defending champions, but Vesnina chose not to participate this year.
Gabriela Dabrowski and Xu Yifan were the defending champions, but chose not to participate this year.
Andreja Klepač and María José Martínez Sánchez were the defending champions, but chose not to participate.
Latisha Chan and Martina Hingis were the defending champions, but Hingis retired from professional tennis at the end of 2017 and Chan could not participate due to a medical condition.
Elise Mertens and Demi Schuurs were the defending champions, but chose not to participate together. Schuurs teamed up with Anna-Lena Grönefeld, but lost in the semifinals to Mertens and Aryna Sabalenka.
Andrea Sestini Hlaváčková and Barbora Strýcová were the defending champions, but Sestini Hlaváčková did not participate due to maternity leave. Strýcová played alongside Hsieh Su-wei, but lost in the second round to Jeļena Ostapenko and Dayana Yastremska.