Nejo, also referred to as Nedjo, is a town located in western Ethiopia. It is situated within the West Welega Zone of the Oromia Region at a latitude of 9°30′N and a longitude of 35°30′E. The town sits at an elevation of 1,821 meters above sea level.
The town serves as the administrative center of Nejo woreda. It is accessible via Nejjo Airport and is located approximately 150 km east of Asosa Airport.