See main article: 2015 Campeonato Internacional de Tenis de Santos.
| Champ: |  Máximo González Roberto Maytín |
| Runner: | Andrés Molteni Guido Pella |
| Score: | 6–4, 7–6(7–4) |
| Type: | singles doubles |
Máximo González and Andrés Molteni were the defending champions, but decided not to compete together. González competed alongside Roberto Maytín, while Molteni played alongside Guido Pella.
González and Maytín won the title, defeating Molteni and Pella in the final, 6–4, 7–6(7–4).