The Malaguni River (Mallaguni, Malangui) is a Nullah or hill stream in Khurda District, Odisha state of India. It originates on the border of Ganjam District and Khurda District. It flows northeast, east and southeast through Khurda Tahasil, passes historic Golabai Sassan and joins the Daya River at (20°0′1″N85°37′30″E), 1 km (0.62 mi) north of Balabhadrapur village in Puri District.