| Competition: | Segunda División |
| Season: | 1930–31 |
| Winners: | Valencia FC |
| Promoted: | Oviedo FC |
| Relegated: | Iberia SC |
| League Topscorer: | Adolfo Suárez (18 goals) |
| Best Goalkeeper: | Enrique Cano (1.39 goals/match) |
| Biggest Home Win: | (18 January 1931) |
| Biggest Away Win: | (4 January 1931) |
| Highest Scoring: | (18 January 1931) (8 March 1931) (1 February 1931) |
| Matches: | 90 |
| Total Goals: | 350 |
| Prevseason: | 1929–30 |
| Nextseason: | 1931–32 |
The 1930–31 Segunda División season saw 10 teams participate in the second flight Spanish league. Valencia was promoted to Primera División. Iberia was relegated to Tercera División.