Segunda División B de Futsal
| Founded | 1989 |
|---|---|
| Country | Spain |
| Confederation | UEFA |
| Number of clubs | 6 groups of 14, 15 or 16 team each one. |
| Level on pyramid | 3 |
| Promotion to | Segunda División |
| Relegation to | Tercera División |
| Domestic cup(s) | Copa del Rey |
| International cup(s) | None |
| Website | rfef.es |
The Segunda División B de Futsal formerly known as Primera Nacional A is the third professional futsal pyramid in Spain. It was founded in 1989 and is managed by the CNFS of the Royal Spanish Football Federation.
The Segunda División B de Futsal consists in 9 groups. Every group corresponds to one or two Spanish regions. There are in total 147 approx. teams. When finishing the regular season in every group, the top team of each group and the four runners-up with highest scores play the promotion playoffs to Segunda División. Conversely, the two or three bottom teams of each group are relegated to Tercera División.
By winning the promotion via playoffs doesn't necessarily mean the promotion for the winning team. Some teams are forced to give up for not meet financial requirements to play in LNFS, even having won the promotion.
- From 2011–12' season onwards, Primera Nacional A will be known as Segunda División B.