Wenchi crater lake, also spelled as Wancii or Wonchi, is a volcano located 98 km (61 mi) west of Addis Ababa, in Oromia Region, Ethiopia.

Wonchi is located at equal distance between the towns of Ambo and Woliso.

[1] Besides Wonchi lake, the caldera also contains hot springs, waterfalls, valleys, and other scenery.

Due to its unique topography, Wanchi has a wide variety of animal and plant species.

Since the construction of Ambo-Waliso gravel road, tourism has emerged as one of the rapidly growing economic sectors in the district, Wanchi lake becoming a favored weekend destination for residents of nearby cities including Addis Ababa.