| 2024 Open de Oeiras II | |
|---|---|
| Date | 13–18 May |
| Edition | 11th |
| Surface | Clay |
| Location | Oeiras, Portugal |
| Champions | |
| Singles | |
 Jaime Faria | |
| Doubles | |
 Anirudh Chandrasekar / Arjun Kadhe | |
The 2024 Open de Oeiras II was a professional tennis tournament played on clay courts. It was the 11th edition of the tournament which was part of the 2024 ATP Challenger Tour. It took place in Oeiras, Portugal between 13 and 18 May 2024.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 USA | Alex Michelsen | 69 | 1 |
| USA | Zachary Svajda | 122 | 2 |
| USA | Emilio Nava | 124 | 3 |
 CZE | Vít Kopřiva | 127 | 4 |
 RSA | Lloyd Harris | 128 | 5 |
 ARG | Román Andrés Burruchaga | 149 | 6 |
| USA | Patrick Kypson | 150 | 7 |
 JPN | Shintaro Mochizuki | 157 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry into the singles main draw as special exempts:
The following players received entry from the qualifying draw:
Jaime Faria def. 
Elias Ymer 3–6, 7–6(7–3), 6–4. Anirudh Chandrasekar / Arjun Kadhe def. Simon Freund / 
Johannes Ingildsen 7–5, 6–4.The 2019 Lisboa Belém Open was a professional tennis tournament played on clay courts. It was the third edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Lisbon, Portugal between 13 and 19 May 2019.
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