← → This is a list of events that occurred in the year 1977 in Portugal.

Portugal participated in the Eurovision Song Contest 1977, with Os Amigos and the song "Portugal no coração".

In association football, for the first-tier league seasons, see 1976–77 Primeira Divisão and 1977–78 Primeira Divisão; for the Taça de Portugal seasons, see 1976–77 Taça de Portugal and 1977–78 Taça de Portugal.