Chiojdu is a commune in the northwestern hill and mountainside region of Buzau County, Romania. Made up of six villages (Bâsca Chiojdului, Catiasu, Chiojdu, Lera, Plescioara and Poenitele) on the bank of the Bâsca Chiojdului River, a small tributary to Buzau River, it is the center of a region known for the good preservation of old traditions and folk art, especially the particular architectural style of the houses.