Lake Chew Bahir (Amharic: ጨው ባሕር č̣ew bāhir, "salty lake") or Lake Istifanos, also called Stefanie, Basso Naebor and Chuwaha, is a lake in southern Ethiopia, located on the southwestern end of the Southern Nations, Nationalities and Peoples' Region, near the border with Oromia Region.