The 2003–04 Maltese First Division (known as the MIA First Division for sponsorship reasons) started on 13 September 2003 and finished on 9 May 2004. Marsa and Mosta were relegated from Maltese Premier League. Tarxien Rainbows and San Gwann were promoted from Maltese Second Division with the latter (San Ġwann) having won a promotion playoff against Vittoriosa Stars. St. Patrick were the champions while Lija Athletic were runners-up. Both were promoted to Maltese Premier League. Tarxien Rainbows and Rabat Ajax were relegated to Maltese Second Division with the former having just clinched promotion only to go straight down again.
