| Doubles | |
|---|---|
| 2025 Oeiras Indoors II | |
| Champions |  Mili Poljičak  Matej Sabanov |
| Runners-up |  Íñigo Cervantes  Mick Veldheer |
| Score | 6–0, 6–1 |
George Goldhoff and Trey Hilderbrand were the defending champions [1] but lost in the quarterfinals to Cleeve Harper and David Stevenson.
Mili Poljičak and Matej Sabanov won the title after defeating Íñigo Cervantes and Mick Veldheer 6–0, 6–1 in the final.
Matwé Middelkoop / 
Denys Molchanov (quarterfinals)
Luis David Martínez / 
Matías Soto (first round)
Vasil Kirkov / Bart Stevens (quarterfinals) Patrik Trhac / 
Szymon Walków (first round)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | M Middelkoop D Molchanov | 6 | 77 | ||||||||||||||||||||||||
| Alt |  D Yevseyev B Zhukayev | 0 | 63 | 1 | M Middelkoop D Molchanov | 5 | 6 | [5] | |||||||||||||||||||
 F Bergevi  J Ingildsen | 4 | 1 | Alt | M Poljičak M Sabanov | 7 | 4 | [10] | ||||||||||||||||||||
| Alt | M Poljičak M Sabanov | 6 | 6 | Alt | M Poljičak M Sabanov | 6 | 711 | ||||||||||||||||||||
| 4 | P Trhac S Walków | 4 | 4 | Alt | M Kiger  F Reynolds | 3 | 69 | ||||||||||||||||||||
 L Draxl B Sigouin | 6 | 6 | L Draxl B Sigouin | 2 | 63 | ||||||||||||||||||||||
| Alt | M Kiger F Reynolds | 2 | 77 | [13] | Alt | M Kiger F Reynolds | 6 | 77 | |||||||||||||||||||
 A Merino  C Negritu | 6 | 64 | [11] | Alt | M Poljičak M Sabanov | 6 | 6 | ||||||||||||||||||||
 A Jecan  Giorgio Ricca | 0 | 3 | Í Cervantes M Veldheer | 0 | 1 | ||||||||||||||||||||||
| Í Cervantes M Veldheer | 6 | 6 | Í Cervantes M Veldheer | 77 | 6 | ||||||||||||||||||||||
| WC |  G Elias Tiago Pereira | 2 | 3 | 3 | V Kirkov B Stevens | 61 | 3 | ||||||||||||||||||||
| 3 | V Kirkov B Stevens | 6 | 6 | Í Cervantes M Veldheer | 3 | 6 | [11] | ||||||||||||||||||||
| R Cash JJ Tracy | 64 | 77 | [4] | C Harper  D Stevenson | 6 | 3 | [9] | ||||||||||||||||||||
| G Goldhoff T Hilderbrand | 77 | 65 | [10] | G Goldhoff T Hilderbrand | 2 | 77 | [5] | ||||||||||||||||||||
| C Harper D Stevenson | 4 | 6 | [10] | C Harper D Stevenson | 6 | 63 | [10] | ||||||||||||||||||||
| 2 | LD Martínez M Soto | 6 | 4 | [6] | |||||||||||||||||||||||
Yuki Bhambri and Saketh Myneni were the defending champions but chose not to defend their title.
Billy Harris and Kelsey Stevenson were the defending champions but lost in the quarterfinals to Gabriel Diallo and Leandro Riedi.
Maximilian Neuchrist and Michail Pervolarakis were the defending champions but chose not to defend their title.
Robert Galloway and Hans Hach Verdugo were the defending champions but chose not to compete.
This was the first edition of the tournament.
Mateus Alves and Eduardo Ribeiro were the defending champions but chose not to defend their title.
Andrea Collarini and Renzo Olivo were the defending champions but only Olivo chose to defend his title, partnering Tomás Farjat. They lost in the quarterfinals to Emile Hudd and David Stevenson.
Nicolás Barrientos and Aisam-ul-Haq Qureshi were the defending champions but only Qureshi chose to defend his title, partnering Dmitry Popko. They lost in the first round to Alexandru Jecan and Szymon Walków.
Théo Arribagé and Luca Sanchez were the defending champions but chose not to defend their title.
Toshihide Matsui and Kaito Uesugi were the defending champions but lost in the quarterfinals to Arjun Kadhe and Arthur Reymond.
This was the first edition of the tournament.
Sander Arends and David Pel were the defending champions but only Arends chose to defend his title, partnering Grégoire Jacq. Arends successfully defended his title after he and Jacq defeated Antoine Escoffier and Joshua Paris 6–4, 6–2 in the final.
Julian Cash and Henry Patten were the defending champions but chose not to defend their title.
Luke Johnson and Skander Mansouri were the defending champions but chose not to defend their title.
Luke Johnson and Skander Mansouri were the defending champions but chose not to defend their title.
Rithvik Choudary Bollipalli and Arjun Kadhe were the defending champions but chose not to defend their title.
John-Patrick Smith and Sem Verbeek were the defending champions but chose not to defend their title.
Cannon Kingsley and Luis David Martínez were the defending champions but chose not to defend their title.
Hady Habib and Trey Hilderbrand were the defending champions but chose not to defend their title.
Karol Drzewiecki and Piotr Matuszewski were the defending champions but chose not to defend their title.