2018 Miami Open – Women's doubles
| Women's doubles | |
|---|---|
| 2018 Miami Open | |
| Champions | Ashleigh Barty CoCo Vandeweghe |
| Runners-up | Barbora Krejčíková Kateřina Siniaková |
| Score | 6–2, 6–1 |
Ashleigh Barty and CoCo Vandeweghe defeated Barbora Krejčíková and Kateřina Siniaková in the final, 6–2, 6–1 to win the women's doubles tennis title at the 2018 Miami Open.
Gabriela Dabrowski and Xu Yifan were the defending champions, but lost in the first round to Elise Mertens and Demi Schuurs.