| 2026 Oeiras Indoors II | |
|---|---|
| Date | 26 January – 1 February |
| Edition | 9th |
| Surface | Hard (indoor) |
| Location | Oeiras, Portugal |
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.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| Elmer Møller | 119 | 1 | |
| Vilius Gaubas | 129 | 2 | |
| Martín Landaluce | 149 | 3 | |
| Jaime Faria | 151 | 4 | |
| Henrique Rocha | 158 | 5 | |
| Jurij Rodionov | 167 | 6 | |
| Zsombor Piros | 170 | 7 | |
| Zdeněk Kolář | 176 | 8 |
The following players received wildcards into the singles main draw:
The following player received entry into the singles main draw through the Next Gen Accelerator programme:
The following players received entry into the singles main draw as alternates:
The following players received entry from the qualifying draw: