| Competition: | Girabola 1998 |
| Season: | 1998 (Apr 18–Nov 22) |
| Winners: | Primeiro de Agosto |
| Relegated: | Independente do Tômbwa Progresso do Sambizanga |
| Relegation: | Gira Angola |
| Continentalcup1: | 1998 CAF Champions League |
| Continentalcup1 Qualifiers: | Primeiro de Agosto (Girabola winner) |
| Continentalcup2: | 1998 African Cup Winners' Cup |
| Continentalcup2 Qualifiers: | Sagrada Esperança (1998 cup winner) |
| Continentalcup3: | 1998 CAF Cup |
| Continentalcup3 Qualifiers: | Académica do Lobito (Girabola runnerup) |
| League Topscorer: | Betinho (14 goals) |
| Biggest Home Win: | |
| Biggest Away Win: | |
| Highest Scoring: | |
| Matches: | 210 |
| Total Goals: | 434 |
| Prevseason: | 1997 |
| Nextseason: | 1999 |
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.
Relegated: Benfica do Huambo, Primeiro de Maio
Promoted: Chicoil, SECIL