| Competition: | Segunda División |
| Season: | 1947–48 |
| Winners: | Valladolid |
| Promoted: | Valladolid Deportivo La Coruña |
| Relegated: | Mallorca Real Córdoba |
| League Topscorer: | José Serratusell (31 goals) |
| Best Goalkeeper: | Juan Acuña (1.17 goals/match) |
| Biggest Home Win: | (22 February 1948) |
| Biggest Away Win: | (26 October 1947) (16 November 1947) (21 February 1948) |
| Highest Scoring: | (5 October 1947) (1 November 1947) (4 January 1948) (6 March 1948) |
| Matches: | 182 |
| Total Goals: | 789 |
| Prevseason: | 1946–47 |
| Nextseason: | 1948–49 |
The 1947–48 Segunda División season was the 17th since its establishment and was played between 21 September 1947 and 11 April 1948.
14 teams joined the league, including three relegated from the 1946–47 La Liga and three promoted from the 1946–47 Tercera División.
| Goalscorers | Goals | Team |
|---|---|---|
| 31 | Badalona | |
 Pedro Bazán | 29 | Málaga |
| Julián Vaquero | 26 | Valladolid |
| José Caeiro | 26 | Ferrol |
| Calsita | 20 | Hércules |
| Goalkeeper | Goals | Matches | Average | Team | |
|---|---|---|---|---|---|
| Juan Acuña | 27 | 23 | Deportivo La Coruña | ||
| Juan Alonso | 30 | 21 | Ferrol | ||
| Antonio Tapia | 37 | 21 | Valladolid | ||
| Francisco Gómez | 23 | 13 | Murcia | ||
| José Valero | 21 | 11 | Granada |