Blăjeni (Hungarian: Blezseny) is a commune in Hunedoara County, Transylvania, Romania.

It is composed of eight villages: Blăjeni, Blăjeni-Vulcan, Criș, Dragu-Brad, Groșuri, Plai, Reț, and Sălătruc.

At the 2002 census, the commune had 1,530 inhabitants; 100% of them were ethnic Romanians and 99.4% were Romanian Orthodox.

At the 2011 census, Blăjeni had a population of 1,192 (99% Romanians), while at the 2021 census, it had a population of 883 (97.28% Romanians).

This Hunedoara County location article is a stub.