The Bulgarian Second Professional Football League, also known as Second League or Vtora liga, is the second level of the Bulgarian football league system, below First League and above the Third League. Sixteen teams take part in the league, each playing twice against all the other, once home and once away. Most matches are played on Saturdays and Sundays. The league is administered by the Bulgarian Professional Football League.

The First Professional Football League, commonly known as Parva Liga or Bulgarian First League, is a professional association football league, being the top tier of Bulgarian football league system. Contested by 16 teams, it operates on a system of promotion and relegation with the Second Professional Football League.