| Doubles | |
|---|---|
| 2024 Oeiras Indoors II | |
| Champions |  Karol Drzewiecki Piotr Matuszewski |
| Runners-up |  Arjun Kadhe  Marcus Willis |
| Score | 6–3, 6–4 |
Jay Clarke and Marcus Willis were the defending champions [1] but only Willis chose to defend his title, partnering Arjun Kadhe. Willis lost in the final to Karol Drzewiecki and Piotr Matuszewski.
Drzewiecki and Matuszewski won the title after defeating Kadhe and Willis 6–3, 6–4 in the final.
Jonathan Eysseric / 
Luis David Martínez (quarterfinals)
Roman Jebavý / 
Philipp Oswald (quarterfinals)
Sander Arends / Sem Verbeek (quarterfinals) Arjun Kadhe / Marcus Willis (final)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | J Eysseric LD Martínez | 710 | 6 | ||||||||||||||||||||||||
 M Copil A Jecan | 68 | 2 | 1 | J Eysseric LD Martínez | 64 | 77 | [5] | ||||||||||||||||||||
 M Lībietis  P Niklas-Salminen | 7 | 6 | M Lībietis P Niklas-Salminen | 77 | 63 | [10] | |||||||||||||||||||||
T Arribagé  M Geerts | 5 | 3 | M Lībietis P Niklas-Salminen | 5 | 5 | ||||||||||||||||||||||
| 3 | S Arends S Verbeek | 6 | 6 | K Drzewiecki P Matuszewski | 7 | 7 | |||||||||||||||||||||
 V Uzhylovskyi  Samuel Vincent Ruggeri | 2 | 2 | 3 | S Arends S Verbeek | 2 | 6 | [8] | ||||||||||||||||||||
D Added  M Damm | 3 | 61 | K Drzewiecki P Matuszewski | 6 | 3 | [10] | |||||||||||||||||||||
| K Drzewiecki P Matuszewski | 6 | 77 | K Drzewiecki P Matuszewski | 6 | 6 | ||||||||||||||||||||||
A Lawson  S Martos Gornés | 5 | 4 | 4 | A Kadhe M Willis | 3 | 4 | |||||||||||||||||||||
| Alt |  Gonçalo Falcão F Romboli | 7 | 6 | Alt | G Falcão F Romboli | ||||||||||||||||||||||
| WC | Tiago Pereira Francisco Rocha | 1 | 4 | 4 | A Kadhe M Willis | w/o | |||||||||||||||||||||
| 4 | A Kadhe M Willis | 6 | 6 | 4 | A Kadhe M Willis | 6 | 3 | [13] | |||||||||||||||||||
| Alt |  A Andreev A McHugh | 3 | 4 |  F Bergevi M Veldheer | 2 | 6 | [11] | ||||||||||||||||||||
| F Bergevi M Veldheer | 6 | 6 | F Bergevi M Veldheer | 6 | 7 | ||||||||||||||||||||||
| J Faria H Rocha | 6 | 1 | [8] | 2 | R Jebavý P Oswald | 3 | 5 | ||||||||||||||||||||
| 2 | R Jebavý P Oswald | 4 | 6 | [10] | |||||||||||||||||||||||
Alexander Erler and Lucas Miedler were the defending champions but chose not to compete.
Igor Sijsling and Tim van Rijthoven were the defending champions but chose not to defend their title.
Robert Galloway and Alex Lawson were the defending champions but chose not to defend their title.
This was the first edition of the tournament.
Radu Albot and Alexander Cozbinov were the defending champions but chose not to defend their title.
Guillermo Durán and Nicolás Mejía were the defending champions but chose not to defend their title.
This was the first edition of the tournament.
Gianluca Mager and Andrea Pellegrino were the defending champions but chose not to defend their title.
Dustin Brown and Andrea Vavassori were the defending champions but chose not to defend their title.
Victor Vlad Cornea and Ruben Gonzales were the defending champions but only Gonzales chose to defend his title, partnering Chung Yun-seong. Gonzales lost in the semifinals to Ray Ho and Calum Puttergill.
Hsu Yu-hsiou and Yuta Shimizu were the defending champions but lost in the quarterfinals to Rithvik Choudary Bollipalli and Arjun Kadhe.
The 2024 Oeiras Indoors II was a professional tennis tournament played on hard courts. It was the 4th edition of the tournament which was part of the 2024 ATP Challenger Tour. It took place in Oeiras, Portugal from 8 to 13 January 2024.
Andrew Harris and Christian Harrison were the defending champions but chose not to defend their title.
Jay Clarke and Arjun Kadhe were the defending champions but only Kadhe chose to defend his title, partnering Hsu Yu-hsiou. Kadhe lost in the quarterfinals to Toshihide Matsui and Kaito Uesugi.
Yuki Bhambri and Mahesh Bhupathi were the defending champions from when the tournament was last held in 2016, but they didn't defend their title as Bhambri chose not to participate and Bhupathi retired from professional tennis.
Skander Mansouri and Michail Pervolarakis were the defending champions but only Mansouri chose to defend his title, partnering Luke Johnson. He lost in the semifinals to Arjun Kadhe and Jeevan Nedunchezhiyan.
Aziz Dougaz and Antoine Escoffier were the defending champions but chose not to defend their title.
William Blumberg and Luis David Martínez were the defending champions but only Martínez chose to defend his title, partnering Federico Agustín Gómez. He lost in the semifinals to Christian Harrison and Marcus Willis.
John Peers and Marcus Willis defeated Harold Mayot and Luke Saville in the final, 6–1, 6–7(1–7), [10–7], to win the men's doubles title at the 2024 Nottingham Open.
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.
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