The 1934–35 Campeonato da Liga season was the first season of top-tier football in Portugal. Although that, the most important national competition (in a knock-out cup format) was still called Portuguese Championship, until 1938, the competition was considered not very competitive with a reduced number of matches played by each team. So a new competition, in round-robin format was created ind 1934, with 8 clubs. Although at time the winner of the Portuguese Championship was considered the National Champion, later, the winner of Campeonato da Liga 1934–35 would be considered the first National Champion.[1][2]
