| League | : | Segunda División | |
| Season | : | 2025–26 | |
| Association | : |  Real Federación Española de Fútbol (RFEF) | |
| Edition | : | 95th | |
| Teams | : | 22 | |
| Current champions | : | Levante (2023–24) | |
| Promoted teams | : | Ceuta, Cultural Leonesa, Andorra, Real Sociedad B | |
| Total matches | : | 468 | |
| Dates | : | 17 August 2025 – 31 May 2026 | |
Captains
| Team | Captain | Nationality |
|---|---|---|
 Albacete | Riki Rodríguez | Spain |
 Almería | Lucas Robertone |  Argentina |
 Andorra | Rubén Bover | Spain |
 Burgos | Raúl Navarro | Spain |
 Cádiz | Iza Carcelén | Spain |
 Castellón | Salva Ruiz | Spain |
 Ceuta | ||
 Córdoba | Carlos Marín | Spain |
 Cultural Leonesa | ||
 Deportivo La Coruña | Lucas Pérez | Spain |
 Eibar | Anaitz Arbilla | Spain |
 Granada | Carlos Neva | Spain |
 Huesca | Jorge Pulido | Spain |
 Las Palmas | Kirian Rodríguez | Spain |
 Leganés | Sergio González | Spain |
 Málaga | Alfonso Herrero | Spain |
 Mirandés | Álex Barbu | Spain |
 Racing Santander | Íñigo Sainz-Maza | Spain |
 Real Sociedad B | ||
 Sporting Gijón | Nacho Méndez | Spain |
 Valladolid | Javi Sánchez | Spain |
 Zaragoza | Cristian Álvarez | Argentina |