Vice Admiral G. Ashok Kumar PVSM, AVSM, VSM is a retired Flag Officer in the Indian Navy, who is currently appointed as the first National Maritime Security Coordinator. He works within the National Security Council Secretariat under the National Security Advisor Ajit Doval. He served as the 35th Vice Chief of the Naval Staff. He assumed the position on 30 January 2019 from Vice Admiral Ajit Kumar who took over the Western Naval Command. He retired on 31 July 2021 after 39 years of service. He is succeeded by Vice Admiral Satish Namdeo Ghormade.

The Vice Chief of the Naval Staff (VCNS) is a statutory position in the Indian Armed Forces, that is usually held by a three star vice admiral. The Vice Chief is the deputy of the Chief of the Naval Staff and is usually the second highest ranking officer of the Indian Navy. The current VCNS is Vice Admiral Krishna Swaminathan who took over from Vice Admiral Dinesh K Tripathi on 1 May 2024.