See main article: 2018 Copa Colsanitas.
Beatriz Haddad Maia and Nadia Podoroska were the defending champions, but Haddad Maia could not participate this year due to a right wrist injury. Podoroska played alongside Mariana Duque Mariño, but lost in the final to Dalila Jakupović and Irina Khromacheva, 3–6, 4–6.