| Doubles | |
|---|---|
| 2018 Fuzion 100 Southsea Trophy | |
| Champions |  Kirsten Flipkens  Johanna Larsson | 
| Runners-up |  Alicja Rosolska  Abigail Spears | 
| Score | 6–4, 3–6, [11–9] | 
Shuko Aoyama and Yang Zhaoxuan are the defending champions, [1] however Yang chose to participate in Eastbourne. Aoyama played alongside Monica Niculescu but lost in the semifinals to Alicja Rosolska and Abigail Spears.
Kirsten Flipkens and Johanna Larsson won the title after defeating Rosolska and Spears 6–4, 3–6, [11–9] in the final. [2]
 Shuko Aoyama /
  Shuko Aoyama /   Monica Niculescu (semifinals)
  Monica Niculescu (semifinals) Kirsten Flipkens /
  Kirsten Flipkens /   Johanna Larsson (champions)
  Johanna Larsson (champions)| First round | Semifinals | Final | ||||||||||||||||||
| 1 |  S Aoyama  M Niculescu | 3 | 2 | |||||||||||||||||
|  A Rosolska  A Spears | 6 | 6 | ||||||||||||||||||
|  K Christian  G Olmos | 7 | 2 | [12] | |||||||||||||||||
|  A Rosolska  A Spears | 5 | 6 | [14] | |||||||||||||||||
|  A Rosolska  A Spears | 4 | 6 | [9] | |||||||||||||||||
| 2 |  K Flipkens  J Larsson | 6 | 3 | [11] | ||||||||||||||||
|  M Adamczak  R Voráčová | 7 | 2 | [9] | |||||||||||||||||
|  L Marozava  R Olaru | 5 | 6 | [11] | |||||||||||||||||
|  L Marozava  R Olaru | 4 | 5 | ||||||||||||||||||
| 2 |  K Flipkens  J Larsson | 6 | 7 | |||||||||||||||||