Arsi Negele is a woreda in Oromia Region, Ethiopia. It is named after its administrative center, Arsi Negele. Part of the West Arsi Zone located in the Great Rift Valley, Arsi Negele is bordered on the south by Naannawa Shashamane and Kofale, on the southwest by Lake Shala which separates it from Shala, on the west by the Southern Nations, Nationalities and Peoples Region, on the north by East Shewa with which it shares the shores of Lakes Abijatta and Langano, and on the east by the Heban Arsi, Qore woreda and small portion by Arsi Zone.