Boji Dirmaji is one of the woredas in the Oromia Region of Ethiopia. It is part of the Mirab Welega Zone and a part of former Boji woreda. It is bounded by Benishangul Gumuz Regional state in the north, Nejo in the west, Boji Chokorsa in the south and Lalo Asabi in the southeast. Bila is the administrative center.