The 1998 Girabola was the 20th season of top-tier football competition in Angola. The season began on April 1, 1998. Primeiro de Agosto were the defending champions. The league comprised 16 teams, the bottom three of which were relegated to the 1999 Gira Angola. Primeiro de Agosto were crowned champions, winning their 7th title, while Chicoil, Kabuscorp and SECIL Marítima were relegated. Alberto Ferreira aka Betinho of Petro de Luanda finished as the top scorer with 14 goals.