2015–16 Segunda División B
The 2015–16 Segunda División B season was the 39th since its establishment. The first matches of the season were to be played in August 2015, and the season ended in June 2016 with the promotion play-off finals.
Overview before the season
80 teams will join the league, including four relegated from the 2014–15 Segunda División and 18 promoted from the 2014–15 Tercera División.;Relegated from Segunda División:
;Promoted from Tercera División:
- Algeciras
- Arandina
- Arenas Getxo
- Atlético Levante
- Ebro
- Gernika
- Izarra
- Jumilla
- Linares
- Llosetense
- Mensajero
- Mérida
- Pobla de Mafumet
- Peña Sport
- Pontevedra
- Portugalete
- Rayo Majadahonda
- Talavera de la Reina
Groups
Group 1
Stadia and locations
| Team | Home city | Stadium | Capacity |
| Arandina | Aranda de Duero | El Montecillo | 6,000 |
| Atlético Astorga | Astorga | La Eragudina | 2,000 |
| Burgos | Burgos | El Plantío | 14,000 |
| Cacereño | Cáceres | Príncipe Felipe | 7,000 |
| Celta B | Vigo | [Campo Estadio Municipal de Marbella|Municipal de Barreiro|Barreiro] | 4,500 |
| Compostela | Santiago | San Lázaro | 14,000 |
| Coruxo | Coruxo, Vigo | O Vao | 1,200 |
| Cultural Leonesa | León | Reino de León | 13,451 |
| Guijuelo | Guijuelo | Estadio Municipal | 1,500 |
| Izarra | Estella-Lizarra | Merkatondoa | 3,500 |
| Lealtad | Villaviciosa | Les Caleyes | 3,000 |
| Peña Sport | Tafalla | San Francisco | 3,000 |
| Pontevedra | Pontevedra | Pasarón | 12,000 |
| Racing Ferrol | Ferrol | A Malata | 12,042 |
| Racing Santander | Santander | El Sardinero | 22,222 |
| Somozas | As Somozas | Pardiñas | 1,000 |
| Sporting B | Gijón | Pepe Ortiz | 3,000 |
| Tudelano | Tudela | Ciudad de Tudela | 11,000 |
| UD Logroñés | Logroño | Las Gaunas | 16,000 |
| Valladolid B | Valladolid | Anexos José Zorrilla | 1,500 |

