The 2003-04 First Division season was the 26th of the amateur competition of the first-tier football in Guinea-Bissau. The tournament was organized by the Football Federation of Guinea-Bissau. The season began on 27 December 2003 and finished on 17 June 2004, this was their next in two years. SC Bissau won their eleventh title and finished with 39 points and to financial reasons did not qualify and competed in the 2005 CAF Champions League the following season. Mavegro won the 2004 Guinea-Bissau Cup and did not participate in the 2005 CAF Confederation Cup the following season also to financial concerns.
Originally a 22 match season and would be 232 matches, instead as FC Bijagos and UDI Bissau withdrew and were excluded, an 18 match season took place and thus relegated to the second division in the following season. Flamengo Bissau was last place with 13 points and the only club who competed relegated.
UDI Bissau was the defending team of the title. SC Bissau finished with 39 points. Atlético Bissorã scored the most goals numbering 28.
Participating clubs
Sporting Clube de Bissau
Bula Futebol Clube - Promoted from the Second Division
UDI Bissau
Sport Bissau e Benfica
Atlético Clube de Bissorã
Futebol Clube de Bijagos
Sporting Clube de Bafatá
Futebol Clube de Cantchungo
Mavegro Futebol Clube
Flamengo Futebol Clube
Estrela Negra de Bolama - Promoted from the Second Division
CF Os Balantas
Overview
The league was contested by 10 teams with SC de Bissau winning the championship.