The Sahibi river, also called the Sabi River, is an ephemeral, rain-fed river flowing through Rajasthan, Haryana (where its canalised portion is called the "Outfall Drain No 8") and Delhi states in India. It drains into Yamuna in Delhi, where its channeled course is also called the Najafgarh drain, which also serves as Najafgarh drain bird sanctuary. Sahibi is a seasonal river which is 300 km long and flows from Aravalli hills in Rajasthan to Haryana, of which 100 km is in Haryana.