1965–66 Segunda División
| Season | 1965–66 |
|---|---|
| Champions | Deportivo La Coruña Hércules |
| Promoted | Deportivo La Coruña Hércules Granada |
| Relegated | Hospitalet Melilla Baracaldo Badajoz |
| Matches played | 480 |
| Goals scored | 1,259 (2.62 per match) |
| Top goalscorer | Abel Fernández (26 goals) |
| Best goalkeeper | José Antonio Fernández (0.62 goals/match) |
| Biggest home win | Tenerife 7–0 Constancia (12 September 1965) Levante 7–0 Melilla (19 September 1965) Condal 8–1 Langreo (25 December 1965) |
| Biggest away win | Indauchu 0–4 Osasuna (2 January 1966) |
| Highest scoring | Real Santander 6–3 Indauchu (5 December 1965) Condal 8–1 Langreo (25 December 1965) |
← 1964–65 1966–67 → | |
The 1965–66 Segunda División season was the 35th since its establishment and was played between 5 September 1965 and 3 April 1966.