1998–99 Segunda División B

The 1998–99 season of Segunda División B of Spanish football started in August 1998 and ended in May 1999 after the play-offs.

Summary before the 1998–99 season
Playoffs de Ascenso:


 * Cacereño
 * Real Madrid B
 * Deportivo de La Coruña B
 * Talavera
 * Barakaldo
 * Athletic Bilbao B
 * Beasain
 * Cultural Leonesa
 * Barcelona B (P)
 * Terrassa
 * Mallorca B (P)
 * Espanyol B
 * Málaga (P)
 * Recreativo de Huelva (P)
 * Cádiz
 * Granada

Relegated from Segunda División:


 * Elche
 * Jaén
 * Xerez
 * Levante

Promoted from Tercera División:


 * Lalín (from Group 1)
 * Lealtad (from Group 2)
 * Tropezón (from Group 3)
 * Noja (from Group 3)
 * Palamós (from Group 5)
 * Benidorm (from Group 6)
 * Móstoles (from Group 7)
 * San Sebastián de los Reyes (from Group 7)
 * Ceuta (from Group 10)
 * Algeciras (from Group 10)
 * Universidad de Las Palmas (from Group 12)
 * Cartagonova (from Group 13)
 * Águilas (from Group 13)
 * Jerez (from Group 14)
 * Calahorra (from Group 15)
 * Binéfar (from Group 16)
 * Conquense (from Group 17)

Relegated:


 * As Pontes
 * Rayo Majadahonda
 * Carabanchel
 * Leganés B
 * Racing de Santander B
 * Real Unión
 * Izarra
 * Andorra
 * Gáldar
 * Novelda
 * Sóller
 * FC Andorra
 * Lorca
 * San Pedro
 * Guadix
 * Mar Menor
 * Zamora

Group I
Teams from Asturias, Canary Islands, Castilla–La Mancha, Community of Madrid and Galicia

Group II
Teams from Aragon, Basque Country, Cantabria, Castile and León, Castilla–La Mancha, La Rioja and Navarre.

Group III
Teams from Catalonia, Region of Murcia and Valencian Community.

Group IV
Teams from Andalusia, Castilla–La Mancha, Ceuta, Extremadura and Melilla.