The 1980–81 Segunda Divisão season was the 47th season of recognised second-tier football in Portugal.
Overview The league was contested by 48 teams in 3 divisions with Rio Ave F.C., U.D. Leiria, and G.D. Estoril Praia winning the respective divisional competitions and gaining promotion to the Primeira Liga. The overall championship was won by U.D. Leiria.
League standings Segunda Divisão - Zona Norte
Segunda Divisão - Zona Centro
Segunda Divisão - Zona Sul
Play-offs
Championship play-off
Promotion play-off
Footnotes