Bambasi (also spelled Bambeshi) is a woreda in the Benishangul-Gumuz Region of Ethiopia.
Part of the Asosa Zone, it is bordered by the Mao-Komo special woreda on the southwest, Asosa in the northwest, Oda Buldigilu in the northeast, and by the Oromia Region in the southeast.
The five largest ethnic groups reported in Bambasi were the Amhara (52%), the Berta (33.8%), the Oromo (12.4%), 12.3% Komo, the Tigray (4.7%), and the Mao (3.7%).
The majority of the inhabitants were Muslim, with 72.3% of the population reporting they belonged to that faith, while 26.3% observed Ethiopian Orthodox Christianity.
[2] With an estimated area of 2,210.16 square kilometers, Bambasi has a population density of 21.4 people per square kilometer which is greater than the Zone average of 19.95. keshmando(Gojjam sefer) is one oldest and historical place in this woreda.