| Competition: | Segunda División |
| Season: | 1929–30 |
| Winners: | Deportivo Alavés |
| Promoted: | Deportivo Alavés |
| Relegated: | Cultural y Deportiva Leonesa |
| Matches: | 90 |
| Total Goals: | 349 |
| Prevseason: | 1929 |
| Nextseason: | 1930–31 |
The 1929–30 Segunda División season saw 10 teams participate in the second flight Spanish league. Alavés was promoted to Primera División. Cultural Leonesa was relegated to Tercera División.