| Competition: | Primeira Liga |
| Season: | 1981–82 |
| Winners: | Sporting CP 16th title |
| Relegated: | Penafiel Académico de Viseu Belenenses União de Leiria |
| Continentalcup1: | European Cup |
| Continentalcup1 Qualifiers: | Sporting CP (first round) |
| Continentalcup2: | Cup Winners' Cup |
| Continentalcup2 Qualifiers: | Sporting Braga (first round) |
| Continentalcup3: | UEFA Cup |
| Continentalcup3 Qualifiers: | Benfica (first round) Porto (first round) |
| Matches: | 240 |
| Total Goals: | 563 |
| League Topscorer: | Jacques (27 goals) |
| Prevseason: | 1980–81 |
| Nextseason: | 1982–83 |
Statistics of Portuguese Liga in the 1981–82 season.
It was contested by 16 teams, and Sporting Clube de Portugal won the championship.
C.F. Os Belenenses, who had co-founded the league in 1934 with Sporting, S.L. Benfica and F.C. Porto, was relegated for the first time.
| Rank | Player | Club | Goals[1] | |
|---|---|---|---|---|
| 1 | Jacques | Porto | 27 | |
| 2 | Rui Jordão | Sporting | 26 | |
| 3 | Nené | Benfica | 24 | |
| 4 | Joaquim Rocha | Vitória de Guimarães | 16 | |
| 5 | Manuel Fernandes | Sporting | 15 | |
| 6 |  Caio Cambalhota | Amora | 14 | |
| 7 | António Oliveira | Sporting | 12 | |
| N'Habola | União de Leiria | |||
| Norton de Matos | Portimonense | |||
| 10 | José Abrantes | Estoril | 10 |