- Source: 2024 Oeiras Indoors II
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.
Singles main-draw entrants
= Seeds
=1 Rankings are as of 1 January 2024.
= Other entrants
=The following players received wildcards into the singles main draw:
João Domingues
Jaime Faria
Tiago Pereira
The following players received entry into the singles main draw using protected rankings:
Nicolás Álvarez Varona
Paul Jubb
The following players received entry into the singles main draw as special exempts:
Gastão Elias
Maks Kaśnikowski
The following players received entry from the qualifying draw:
Marius Copil
Sebastian Fanselow
Aidan McHugh
Elmer Møller
Samuel Vincent Ruggeri
Michael Vrbenský
The following player received entry as a lucky loser:
Dan Added
Champions
= Singles
=Leandro Riedi def. Martin Damm 7–6(8–6), 6–2.
= Doubles
=Karol Drzewiecki / Piotr Matuszewski def. Arjun Kadhe / Marcus Willis 6–3, 6–4.