布拉日(罗马尼亚语: Blaj[blaʒ]; 匈牙利语: Balázsfalva; 德语: Blasendorf;) ，罗马尼亚中部阿尔巴县辖市。总人口20,758。

布拉日市辖有8个村，分别为：Deleni-Obârşie (Obursatanya), Fliteşti, Izvoarele (Csufud), Mănărade (Monora), Petrisat (Magyarpéterfalva), Spătac (Szászpatak), Tiur (Tűr) ，Veza (Véza).

Blaj (Romanian pronunciation: [blaʒ]; archaically spelled as Blaș; Hungarian:Balázsfalva; German:Blasendorf; Transylvanian Saxon dialect: Blußendref) is a city in Alba County, Transylvania, Romania. It has a population of 20,630 inhabitants.

The landmark of the city is the fact that it was the principal religious and cultural center of the Romanian Greek-Catholic Church in Transylvania.