The 1990 Girabola was the 12th season of top-tier football competition in Angola. Atlético Petróleos de Luanda were the defending champions.
The league comprised 14 teams, none of which were relegated.
Petro de Luanda were crowned champions, winning their 7th title, and fifth in a row, while there were no relegations.
Mikayela Diakananwa aka Mona of Petro de Luanda finished as the top scorer with 17 goals.
Benfica do Huambo, formerly Mambroa, set an all time championship's record for most goals scored in a single match and for the largest goal-difference win in their 12-0 home win against Sassamba da Lunda Sul.