The 1928 Bulgarian State Football Championship was the fifth edition of the competition. It was contested by 5 teams, and Slavia Sofia won the championship, defeating Vladislav Varna 4–0 in the final.
Qualified teams
The winners from each OSO (Bulgarian: окръжна спортна област, lit. 'regional sports district') qualify for the State championship.[Note 1]
^Only five teams were admitted to the championship as many OSOs again didn't determine their winners before the deadline. For most of the OSOs from the south of the country this was also due to the two devastating earthquakes near Chirpan in April 1928.