Bulgarian football champions mean those that won the highest league in Bulgarian football, which since 2016-2017 is the First Professional League. The first national football competition in Bulgaria was established in 1924 by the Bulgarian National Sport Federation and was named Bulgarian State Football Championship. The championship was a knockout tournament featuring six clubs that had won six regional divisions. These divisions were round-robin tournaments that included football clubs that were founded in different geographic areas. The winners of each division were drawn in pairs at random for each of the three one-match rounds. Two of the clubs qualified directly for the second round (the semi-final stage) and the other four had to play two quarter-final matches. The championship didn