Brateiu (; ; Transylvanian Saxon dialect: Pretoa) is a commune located in Sibiu County, Transylvania, Romania. It is composed of two villages, Brateiu and Buzd, each of which has a fortified church. There is a big archaeological complex located here.
At the 2011 Romanian census, 57% of inhabitants were Romanians, 41% Roma, and 1% Germans (more specifically Transylvanian Saxons) and Hungarians each.