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.
| Doubles | |
|---|---|
| 2018 Monterrey Open | |
| Champions |  Naomi Broady  Sara Sorribes Tormo |
| Runners-up |  Desirae Krawczyk  Giuliana Olmos |
| Score | 3–6, 6–4, [10–8] |
| Draw | 16 |
| Seeds | 4 |
Naomi Broady and Sara Sorribes Tormo won the title, defeating Desirae Krawczyk and Giuliana Olmos in the final, 3–6, 6–4, [10–8].
Seeds edit
Nao Hibino / 
Darija Jurak (quarterfinals)
María Irigoyen / Miyu Kato (quarterfinals)
Dalila Jakupović / 
Irina Khromacheva (quarterfinals)- Anna Blinkova /
Lidziya Marozava (first round)
Draw edit
Key edit
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- SE = Special exempt
- PR = Protected ranking
- ITF = ITF entry
- JE = Junior exempt
- w/o = Walkover
- r = Retired
- d = Defaulted
- SR = Special ranking
Draw edit
| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 |  N Hibino D Jurak
| 7 | 6 | ||||||||||||||||||||||||
 Y Bonaventure V Rodríguez
| 5 | 1 | 1 | N Hibino D Jurak
| 2 | 66 | |||||||||||||||||||||
| WC | M Zacarías R Zarazúa
| 3 | 0 |  V Savinykh Y Sizikova
| 6 | 78 | |||||||||||||||||||||
| V Savinykh Y Sizikova
| 6 | 6 | V Savinykh Y Sizikova
| 7 | 64 | [1] | |||||||||||||||||||||
| 3 |  D Jakupović I Khromacheva
| 6 | 6 | D Krawczyk G Olmos
| 5 | 77 | [10] | ||||||||||||||||||||
 N Podoroska P Thombare
| 2 | 2 | 3 | D Jakupović I Khromacheva
| 3 | 5 | |||||||||||||||||||||
| K Christian S Santamaria
| 3 | 77 | [4] | D Krawczyk G Olmos
| 6 | 7 | |||||||||||||||||||||
| D Krawczyk G Olmos
| 6 | 64 | [10] | D Krawczyk G Olmos
| 6 | 4 | [8] | ||||||||||||||||||||
E Bektas P Hon
| 6 | 5 | [8] | N Broady S Sorribes Tormo
| 3 | 6 | [10] | ||||||||||||||||||||
 M Duque Mariño E Rodina
| 4 | 7 | [10] | M Duque Mariño E Rodina
| w/o | ||||||||||||||||||||||
I Falconi L Tsurenko
| 3 | 6 | [10] | I Falconi L Tsurenko
| |||||||||||||||||||||||
| 4 | A Blinkova L Marozava
| 6 | 3 | [8] | M Duque Mariño E Rodina
| 3 | 1 | ||||||||||||||||||||
J Cako C Lister
| 3 | 2 | N Broady S Sorribes Tormo
| 6 | 6 | ||||||||||||||||||||||
| N Broady S Sorribes Tormo
| 6 | 6 | N Broady S Sorribes Tormo
| 6 | 6 | ||||||||||||||||||||||
| WC |  J Jakšić AS Sánchez
| 0 | 6 | [7] | 2 | M Irigoyen M Kato
| 3 | 2 | |||||||||||||||||||
| 2 | M Irigoyen M Kato
| 6 | 3 | [10] | |||||||||||||||||||||||