Admiral Radhakrishnan Hari Kumar PVSM, AVSM, VSM, ADC (born 12 April 1962) is a serving flag officer in the Indian Navy. He is the 25th and current Chief of the Naval Staff (CNS). Previously, he served as the Flag Officer Commanding-in-Chief, Western Naval Command. In his prior appointments, he served as the Chief of Integrated Defence Staff, Chief of Personnel, Controller Personnel Services, the Flag Officer Commanding Western Fleet, Flag Officer Sea Training and the Chief of the Staff of the Western Naval Command. He was the Commandant of the Naval War College, Goa and served as a naval advisor to the government of Seychelles. He is an alumnus of National Defence Academy and holds an M.Phil. in Defence and Strategic Studies from the University of Mumbai.