The 2026 Oeiras Indoors II was a professional tennis tournament played on hard courts. It was the 9th edition of the tournament which was part of the 2026 ATP Challenger Tour. It took place in Oeiras, Portugal from 26 January to 1 February 2026.

Singles main-draw entrants Seeds Country Player Rank1 SeedElmer Møller1191Vilius Gaubas1292Martín Landaluce1493Jaime Faria1514Henrique Rocha1585Jurij Rodionov1676Zsombor Piros1707Zdeněk Kolář1768 1 Rankings are as of 19 January 2026.

Other entrants The following players received wildcards into the singles main draw: Gastão Elias Martín Landaluce Tiago Torres

The following player received entry into the singles main draw through the Next Gen Accelerator programme: Petr Brunclík

The following players received entry into the singles main draw as alternates: Tiago Pereira Patrick Zahraj

The following players received entry from the qualifying draw: Andrés Andrade Diego Dedura Mathys Erhard Mikhail Kukushkin Iñaki Montes de la Torre Mats Rosenkranz

The following player received entry as a lucky loser: Adrià Soriano Barrera

Champions Singles

Chris Rodesch def. Daniil Glinka 6–3, 7–5.

Doubles

Filip Duda / Zdeněk Kolář def. Erik Grevelius / Adam Heinonen 6–3, 6–4.

References