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The 2017–18 First Professional Football League is the 94th season of the top division of the Bulgarian football league system, the 69th since a league format was adopted for the national competition of A Group as a top tier of the pyramid and also the 2nd season of the First Professional Football League, which decides the Bulgarian champion. The season is the second with a new league structure and strict financial criteria where 14 clubs play each other home and away, until the league is split up in championship and relegation playoffs. The new league structure, inspired by the ones used by the Belgian First Division A and Danish Superliga, was approved by the Bulgarian Football Union on 6 June 2016.
The fixture list was released on 22 June 2017.
Ludogorets Razgrad are the defending champions.
Note: Individual clubs may wear jerseys with advertising. However, only one sponsorship is permitted per jersey for official tournaments organised by UEFA in addition to that of the kit manufacturer (exceptions are made for non-profit organisations).
Clubs in the domestic league can have more than one sponsorship per jersey which can feature on the front of the shirt, incorporated with the main sponsor or in place of it; or on the back, either below the squad number or on the collar area. Shorts also have space available for advertisement.