2017 Tercera División play-offs
Group Pos Team
1 2nd Rápido de Bouzas
2 2nd Avilés
3 2nd Tropezón
4 2nd Vitoria
5 2nd Peralada
6 2nd Alzira
7 2nd Unión Adarve
8 2nd Atlético Astorga
9 2nd Antequera
10 2nd Arcos
11 2nd Poblense
12 2nd UD San Fernando
13 2nd Lorca FC B
14 2nd Badajoz
15 3rd Atlético Cirbonero
16 2nd Náxara
17 2nd Tarazona
18 2nd Conquense
The 2017 Tercera División play-offs to Segunda División B from Tercera División (Promotion play-offs) were the final playoffs for the promotion from 2016-17 Tercera División to 2017-18 Segunda División B. The first four teams in each group took part in the play-off.