1931 Bulgarian State Football Championship
The 1931 Bulgarian State Football Championship was the eighth edition of the competition. It was contested by 12 teams, and it was won by CSKA Sofia. This was the club's first title.
Qualified teams
The winners from each OSO qualify for the State championship.| OSO | Team |
| Varnenska OSO | Shipchenski sokol Varna |
| Shumenska OSO | Han Omurtag Shumen |
| Rusenska OSO | Napredak Ruse |
| Tarnovska OSO | Etar Tarnovo |
| Plevenska OSO | Pobeda 26 Pleven |
| Vrachanska OSO | Orel-Chegan 30 Vratsa |
| Bdinska OSO | Sportist Vidin |
| Sofiyska OSO | AS 23 Sofia |
| Rilska OSO | Levski Dupnitsa |
| Plovdivska OSO | Botev Plovdiv |
| Haskovska OSO | Bulgaria Haskovo |
| Starozagorska OSO | no representative |
| Primorska OSO | Slava Yambol |