The Portuguese First Division Women's Volleyball National Championship (Portuguese: Campeonato Nacional de Voleibol – 1ª Divisão) is the highest professional women's volleyball league in Portugal.

It is organized and administrated by the Portuguese Volleyball Federation (FPV).

The competition is contested since its inaugural season in 1959–60.

It was renamed Honour Division (Portuguese: Divisão de Honra) for the 1983–84, 1986–87 and 1987–88 seasons.

The league was restructured in the 1998–99 season, with the creation of Series A1 and A2 and the introduction of a play-off system at the final stages of the competition.