1974–75 Segunda División de Baloncesto

The 1974–75 Liga Nacional Segunda División de Baloncesto was the second tier of the 1974–75 Spanish basketball season.

Granollers vs Pineda

 * Granollers 65-64 Pineda
 * Pineda 77-66 Granollers

Náutico vs Águilas

 * Náutico 88-69 Águilas
 * Águilas 97-76 Náutico