The 2003–04 A Group was the 56th season of the top Bulgarian national football league (commonly referred to as A Group) and the 80th edition of a Bulgarian national championship tournament.
The reforms also saw the number of teams reduced and introduced relegation play-offs during the years of its existence.
[1] A total of 16 clubs contested the league, including 12 from the previous season in the tier, and 4 promoted from the second flight.
Instead after the end of season 2002–03 the last two teams in the top level – Dobrudzha Dobrich placed 13th, and Rilski Sportist Samokov placed 14th – were directly relegated to B Group.
Vidima-Rakovski, Rodopa and Makedonska Slava all made their debut in the top tier, while Belasitsa Petrich returned after a one-year absence.