2023–24 First Professional Football League (Bulgaria)

The 2023–24 First Professional Football League, also known as efbet League for sponsorship reasons, is the 100th season of the top division of the Bulgarian football league system, the 76th since a league format was adopted for the national competition of A Group as a top tier of the pyramid, and also the 8th season of the First Professional Football League, which decides the Bulgarian champion. The season began on 14 July 2023.

Ludogorets Razgrad were the 12-time defending champions and successfully managed to defend the title, winning it for the thirteenth consecutive time.

Teams
As in the last season, 16 teams will compete in the league this year. Two teams were promoted from the 2022–23 Second League, and another place is for the winner of the promotion/relegation playoff.

The first team to earn promotion from the Second League was Etar, who mathematically secured a top three finish after Sportist Svoge lost to Yantra on May 25. Etar return to the top level after a 2-year absence.

The second team to earn promotion from the Second League was Krumovgrad, who mathematically secured a top three finish after winning against Botev Plovdiv II on May 27. This is going to be Krumovgrad's maiden participation in the Bulgarian top flight.

Additionally, Beroe managed to defeat Sportist Svoge with a score of 1–0 in the promotion/relegation playoff, thus maintaining its place in the First League.

Personnel and kits
Note: Flags indicate national team as has been defined under FIFA eligibility rules. Players and managers may hold more than one non-FIFA nationality. 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.

Championship round
Points and goals will carry over in full from regular season.

Conference League round
Points and goals will carry over in full from regular season.

Relegation round
Points and goals will carry over in full from regular season.