| Competition: | Segunda División |
| Season: | 1951–52 |
| Winners: | Oviedo Málaga |
| Promoted: | Oviedo Málaga |
| Relegated: | Levante Badalona Alicante Lucense Cartagena |
| League Topscorer: | Pedro Bazán (25 goals) |
| Best Goalkeeper: | José María Martí (0.96 goals/match) |
| Biggest Home Win: | (30 September 1951) (6 January 1952) (13 April 1952) |
| Biggest Away Win: | (9 March 1952) |
| Highest Scoring: | (11 November 1951) (9 March 1952) |
| Matches: | 480 |
| Total Goals: | 1584 |
| Prevseason: | 1950–51 |
| Nextseason: | 1952–53 |
The 1951–52 Segunda División season was the 21st since its establishment and was played between 8 September 1951 and 13 April 1952.
32 teams joined the league, including 4 relegated from the 1950–51 La Liga and 4 promoted from the 1950–51 Tercera División.
| Club | City | Stadium |
|---|---|---|
| Deportivo Alavés | Vitoria | Mendizorroza |
| CF Badalona | Badalona | Avenida de Navarra |
| Club Baracaldo | Baracaldo | Lasesarre |
| Caudal Deportivo | Mieres | El Batán |
| Club Ferrol | Ferrol | Inferniño |
| RS Gimnástica de Torrelavega | Torrelavega | El Malecón |
| Gimnástico de Tarragona | Tarragona | Avenida de Cataluña |
| UD Huesca | Huesca | San Jorge |
| UD Lérida | Lérida | Campo de Deportes |
| CD Logroñés | Logroño | Las Gaunas |
| SG Lucense | Lugo | Los Miñones |
| UD Orensana | Orense | O Couto |
| CA Osasuna | Pamplona | San Juan |
| Real Oviedo CF | Oviedo | Buenavista |
| CD Sabadell FC | Sabadell | Cruz Alta |
| CD San Andrés | Barcelona | Santa Coloma |
| Goalscorers | Goals | Team |
|---|---|---|
 Esteban Echevarría | 17 | Gimnástica Torrelavega |
| 15 | Ferrol | |
| Julio Remacha | 15 | Alavés |
| Félix Marcaida | 14 | Baracaldo |
| Ángel Calvo | 13 | Baracaldo |
| Goalkeeper | Goals | Matches | Average | Team | |
|---|---|---|---|---|---|
| Joaquín Gascón | 26 | 21 | Sabadell | ||
| Goyo | 38 | 26 | Osasuna | ||
| Amaro Méndez | 40 | 27 | Caudal | ||
| Luis Pujolrás | 42 | 26 | San Andrés | ||
| Enrique Garatea | 44 | 24 | Huesca |
| Goalscorers | Goals | Team |
|---|---|---|
| Pedro Bazán | 25 | Málaga |
| Sergio Rodríguez | 22 | Málaga |
| 21 | Melilla | |
| Sócrates Belenguer | 18 | Mestalla |
| Antonio Morro | 18 | Mallorca |
| Goalkeeper | Goals | Matches | Average | Team | |
|---|---|---|---|---|---|
| José María Martí | 22 | 23 | Murcia | ||
| Cosme | 25 | 21 | Hércules | ||
| Pedro Caldentey | 36 | 29 | Mallorca | ||
| Eduardo Soro | 30 | 24 | Alcoyano | ||
| Ricardo Zamora | 33 | 22 | Salamanca |