2003–04 Segunda División B
| Season | 2003–04 |
|---|---|
| Promoted | Pontevedra Racing Ferrol Lleida Gimnàstic de Tarragona |
| Relegated | Logroñés Racing de Santander B Calahorra Caudal Real Avilés Casetas Toledo Compostela Rayo Majadahonda Valencia B Mataró Yeclano Palamós Cacereño Mérida Villanovense Los Palacios Betis B |
| Top goalscorer | Rubén Carreño (22 goals) |
| Best goalkeeper | Santi Lampón (0.51 goals) |
| Biggest home win | Vecindario 7–1 Villanovense (29 February 2004) |
| Biggest away win | Real Avilés 0–6 Real Sociedad B (16 April 2004) |
| Highest scoring | Calahorra 6–3 Pontevedra (11 April 2004) |
← 2002–03 2004–05 → | |
The season 2003–04 of Segunda División B of Spanish football started August 2003 and ended May 2004.