| Competition: | Primeira Liga |
| Season: | 1937–38 |
| Winners: | Benfica 3rd title |
| Prevseason: | 1936–37 |
| Nextseason: | 1938–39 (Primeira Divisão) |
The 1937–38 Campeonato da Liga was the fourth season of top-tier football in Portugal. Although the first national competition (in a knock-out cup format) was still called Portuguese Championship, the Primeira Liga winners are considered the national champions.[1]
It was contested by 8 teams, and S.L. Benfica won the championship.