Hamer is one of the woredas in the Southern Nations, Nationalities, and Peoples' Region of Ethiopia. It is named after Hamer people who live in this woreda. Part of the Debub Omo Zone, Hamer is bordered to the south by Kenya, to the southwest by Kuraz, to the west by Nyangatom, to the north by Bena Tsemay, and to the east by the Oromia Region; the Weito River separates it from the Oromia Region. Hamer includes part of Lake Chew Bahir along its southeastern border. The administrative center is ; other towns in include Turmi. Hamer was part of former Hamer Bena woreda.