2011–12 LEB Plata season

The regular season champion will promote directly to LEB Oro and the last qualified will be relegated to Liga EBA.

Champion of last season Knet Rioja and playoffs winner Iberostar Bàsquet Mallorca were promoted to LEB Oro.

Aurteneche Maquinaria, Gandía Bàsquet, Platja de Palma and Eninter CB Santfeliuenc were the Liga EBA playoffs winners and promoted to LEB Plata, but Palma and Santfeliuenc refused to play in this league and stayed in Liga EBA.

Lan Mobel ISB was also relegated to Liga EBA from LEB Plata.

These teams were Aguas de Sousas Ourense (relegated from LEB Oro), River Andorra, CB Prat, Fontedoso Carrefour El Bulevar de Ávila, FC Barcelona Regal B, Aurteneche Maquinaria (champion of last Liga EBA) and Tenerife Baloncesto (achieved one of the vacants).

[4] At this date, four more teams were admitted: Gandía Bàsquet, Leyma Natura Básquet Coruña, Lan Mobel ISB and CB Las Rozas, who played last season in 1ª División (fifth tier, one below Liga EBA).