| Team | : | Real Sociedad de Fútbol, S.A.D. "B" |
| Nickname(s) | : | Sanse |
| Home Stadium | : | Campo José Luis Orbegozo |
| Stadium Capacity | : | 2,500 |
| Location | : | San Sebastián |
| Founded | : | 1955 |
| Website | : | - |
| League | : | Segunda División 2025–26 |
| Manager | : |  Iosu Rivas |
Real Sociedad de Fútbol "B" (also known as Sanse) is a Spanish football team based in San Sebastián, in the autonomous community of Basque Country.
Real Sociedad B 2025–26
| No. | Pos. | Player |
|---|---|---|
| 1 | GK | Aitor Fraga |
| 3 | MF | Jon Balda |
| 4 | DF | Jon Martín |
| 5 | DF | Eneko Astigarraga |
| 6 | MF |  Alex Lebarbier |
| 7 | FW | Dani Díaz |
| 8 | MF | Mikel Rodríguez |
| 9 | FW | Ekain Orobengoa |
| 11 | FW |  Job Ochieng |
| No. | Pos. | Player |
|---|---|---|
| 13 | GK | Egoitz Arana |
| 15 | DF | Peru Rodríguez |
| 17 | FW | Darío Ramirez |
| 20 | FW | Arkaitz Mariezkurrena |
| 22 | DF | Iñaki Rupérez |
| 23 | DF | Unax Agote |
| 24 | DF | Luken Beitia |
| — | DF |  Kazunari Kita |
| — | FW | Alberto Dadie |
Note:
Kazunari Kita (on loan from Kyoto Sanga)Segunda División 2025–26
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