Ziway Dugda is one of the woredas in the Oromia Region of Ethiopia. Part of the Arsi Zone located in the Great Rift Valley, Ziway Dugda is bordered on the south by Munesa, on the west and north by the Misraq Shewa Zone, on the east by Hitosa, and on the southeast by Tiyo; also on its western edge is Lake Zway, whose area this woreda shares with the Misraw Shewa Zone. The administrative center for this woreda is Ogolcho; other settlements include Chefe Jile.
The altitude of this woreda ranges from 1500 to 2300 meters above sea level. The only river in this district is the 30 kilometers of the Katar. A survey of the land in this woreda shows that 31.7% is arable or cultivable, 6% pasture, 46.3% forest, and the remaining 16% is considered swampy, mountainous or otherwise unusable. The Habura and Sango caves are local landmarks. Haricot bean, sugar cane and papaya are important cash crops.
Industry in the woreda includes 14 grain mills employing 35 people, as well as 330 registered merchants of whom 14.5% are wholesalers 33.3% retailers and 52.2% service providers. There were 31 Farmers Associations with 11,203 members. Ziway Dugda has 220 kilometers of dry-weather and 37 all-weather road, for an average of road density of 202.5 kilometers per 1000 square kilometers. About 25.5% of the total population has access to drinking water.
The 2007 national census reported a total population for this woreda of 120,862, of whom 60,379 were men and 60,483 were women; 4,506 or 3.73% of its population were urban dwellers. The majority of the inhabitants said they were Muslim, with 91.04% of the population reporting they observed this belief, while 7.82% of the population practised Ethiopian Orthodox Christianity.