| Official Name: | Wenji Gefersa |
| Native Name Lang: | om |
| Pushpin Map: | Ethiopia |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location within Ethiopia |
| Subdivision Type: | Country |
| Subdivision Name: |  Ethiopia |
| Subdivision Type1: | Region |
| Subdivision Name1: | Oromia |
| Subdivision Type2: | Zone |
| Subdivision Name2: | East Shewa Zone |
| Timezone: | EAT |
| Utc Offset: | +3 |
| Coordinates: | 8.45°N 52°W |
| Elevation M: | 1466 |
Wenji Gefersa (Oromo: Wancii Gafarsaa) a town in central Ethiopia. Located in the East Shewa Zone of the Oromia, it has a latitude and longitude of 8.45°N 56°W with an elevation of 1588 meters above sea level.
Local landmarks include the Wenji Ye'itkilt Wana Mesreya church and the Wonji Sugar Plantation, which covers about 7050 hectares of land. A paper mill was opened in Wenji Gefersa in 1970.
In the latter part of August 1968, approximately 2,000-4,000 workers from the plantation marched to Addis Ababa in a labor protest; they were met by military fire and several workers were killed.[1]
Based on figures from the Central Statistical Agency in 2005, Wenji Gefersa has an estimated total population of 23,510 of whom 11,456 were males and 12,054 were females.[2] The 1994 national census reported this town had a total population of 13,156 of whom 6,213 were males and 6,943 were females. This was a dramatic decrease from the 38,408 recorded in 1987.[1] It is one of five settlements in Nannawa Adama.