2018 Tianjin Open – Doubles
| Doubles | |
|---|---|
| 2018 Tianjin Open | |
| Champions |  Nicole Melichar  Květa Peschke | 
| Runners-up | .svg.png) Monique Adamczak .svg.png) Jessica Moore | 
| Score | 6–4, 6–2 | 
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.
Nicole Melichar and Květa Peschke won the title, defeating Monique Adamczak and Jessica Moore in the final, 6–4, 6–2.
Seeds
 Irina-Camelia Begu / Irina-Camelia Begu / Barbora Krejčíková (quarterfinals) Barbora Krejčíková (quarterfinals)
.svg.png) Gabriela Dabrowski / Gabriela Dabrowski / Xu Yifan (withdrew) Xu Yifan (withdrew)
 Nicole Melichar / Nicole Melichar / Květa Peschke (champions) Květa Peschke (champions)
 Kaitlyn Christian / Kaitlyn Christian / Desirae Krawczyk (first round) Desirae Krawczyk (first round)
Draw
Key
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- ITF = ITF entry
- PR = Protected ranking
- SR = Special ranking
- SE = Special exempt
- JE = Junior exempt
- JR = Junior Accelerator Programme entrant
- CO = College Accelerator Programme entrant
- NG = Next Gen Accelerator Program entrant
- w/o = Walkover
- r = Retired
- d = Defaulted
Draw
| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 |  I-C Begu  B Krejčíková | 6 | 6 | ||||||||||||||||||||||||
| WC |  Y Liu  M Wang | 2 | 0 | 1 |  I-C Begu  B Krejčíková | 4 | 6 | [8] | |||||||||||||||||||
|  S Santamaria  Y Sizikova | 2 | 1 |  X Han  D Jurak | 6 | 4 | [10] | |||||||||||||||||||||
|  X Han  D Jurak | 6 | 6 |  X Han  D Jurak | 4 | 6 | [5] | |||||||||||||||||||||
| 4 |  K Christian  D Krawczyk | 2 | 6 | [4] | .svg.png) M Adamczak .svg.png) J Moore | 6 | 1 | [10] | |||||||||||||||||||
|  L Arruabarrena .svg.png) T Bacsinszky | 6 | 4 | [10] |  L Arruabarrena .svg.png) T Bacsinszky | 63 | 1r | |||||||||||||||||||||
| .svg.png) M Adamczak .svg.png) J Moore | 6 | 1 | [10] | .svg.png) M Adamczak .svg.png) J Moore | 77 | 2 | |||||||||||||||||||||
|  Y Duan  Y Wang | 4 | 6 | [8] | .svg.png) M Adamczak .svg.png) J Moore | 4 | 2 | |||||||||||||||||||||
|  M Doi  E Wacanno | 6 | 6 | 3 |  N Melichar  K Peschke | 6 | 6 | |||||||||||||||||||||
|  X Jiang  Q Tang | 4 | 4 |  M Doi  E Wacanno | 3 | 5 | ||||||||||||||||||||||
|  E Rodina .svg.png) A Tomljanović | 3 | 6 | [6] | 3 |  N Melichar  K Peschke | 6 | 7 | ||||||||||||||||||||
| 3 |  N Melichar  K Peschke | 6 | 4 | [10] | 3 |  N Melichar  K Peschke | 4 | 6 | [10] | ||||||||||||||||||
| WC |  H Guo  L Zhu | 5 | 3 |  N Dzalamidze  V Kudermetova | 6 | 3 | [6] | ||||||||||||||||||||
|  J Cako  P Thombare | 7 | 6 |  J Cako  P Thombare | 4 | 4 | ||||||||||||||||||||||
|  N Dzalamidze  V Kudermetova | 77 | 1 | [10] |  N Dzalamidze  V Kudermetova | 6 | 6 | |||||||||||||||||||||
| Alt |  A Raina  E Webley-Smith | 64 | 6 | [5] | |||||||||||||||||||||||