| Competition: | Tercera División |
| Season: | 1930–31 |
| Promoted: | Celta |
| Biggest Home Win: | Racing de Ferrol 9–0 Nacional de Madrid (14 December 1930) |
| Biggest Away Win: | Sestao 1–5 Patria Aragón (8 March 1931) |
| Highest Scoring: | Celta 11–3 Stadium Avilesino (7 December 1930) |
| Matches: | 150 |
| Total Goals: | 632 |
| Prevseason: | 1929–30 |
| Nextseason: | 1931–32 |
The 1930–31 Tercera División season was the third season since its establishment.