 | This article relies largely or entirely on a single source .(March 2024) |
| 2024 Oeiras Indoors | |
|---|---|
| Date | 1 – 7 January |
| Edition | 3rd |
| Surface | Hard (indoor) |
| Location | Oeiras, Portugal |
| Champions | |
| Singles | |
 Maks Kaśnikowski | |
| Doubles | |
 Jay Clarke / Marcus Willis | |
The 2024 Oeiras Indoors was a professional tennis tournament played on hard courts. It was the 3rd edition of the tournament which was part of the 2024 ATP Challenger Tour. It took place in Oeiras, Portugal from 1 to 7 January 2024.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 POR | Henrique Rocha | 246 | 1 |
| POR | João Sousa | 249 | 2 |
 TUR | Cem İlkel | 255 | 3 |
 FRA | Maxime Janvier | 258 | 4 |
 BUL | Adrian Andreev | 265 | 5 |
| FRA | Valentin Royer | 276 | 6 |
| FRA | Mathias Bourgue | 278 | 7 |
 BEL | Michael Geerts | 286 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry into the singles main draw using protected rankings:
The following players received entry from the qualifying draw:
Jay Clarke Kenny de Schepper 
Egor Gerasimov Alastair Gray 
Noah Rubin 
Samuel Vincent RuggeriThe following player received entry as a lucky loser:
Vadym Ursu Maks Kaśnikowski def. Gastão Elias 7–6(7–1), 4–6, 6–3. Jay Clarke / Marcus Willis def. Théo Arribagé / Michael Geerts 6–4, 6–7(9–11), [10–3].