Silti (ስልጢ) is one of the zones in the Central Ethiopia Regional State of Ethiopia. It is named after a subgroup of the Silt'e people, whose homeland includes this zone. Formerly part of the Gurage Zone, after a referendum held between 18 and 26 April 2001, this woreda became part of the Silt'e Zone. This woreda is bordered on the south by Lanfro and Dalocha, on the southwest by Wulbareg, on the west by Alicho Werero, on the north by the Gurage Zone, and on the east by the Oromia Region. The administrative center of this woreda is Kibet; other towns in Silti include Alkaso, and Werabe. Southwestern part of this woreda was added to Wulbareg woreda.