The 1990–91 Terceira Divisão season was the 44th season of the competition and the 1st season of recognised fourth-tier football in Portugal.
Overview The league was contested by 108 teams in 6 divisions of 18 teams in each.
Terceira Divisão – Série A
Terceira Divisão – Série B
Terceira Divisão – Série C
Terceira Divisão – Série D
Terceira Divisão – Série E
Terceira Divisão – Série F
Footnotes