The Segunda Divisão Portuguesa (English: Portuguese Second Division) was a football league situated at the third level of the Portuguese football league system.

The competition merged with the Terceira Divisão at the end of the 2012–13 to form a new enlarged third level league, the Campeonato Nacional de Seniores.

In its last season, the league was split into three zonal divisions: Norte (North), Centro (Centre) and Sul (South).

[1] The three regional divisions were the usual format of the league, but definition of the tier championship varied: Sometimes it was an elimination tournament with a final, and other times a final round-robin of the regional division winners.

Other times there would be no single champion, and all three regional winners would be promoted without playing a final.