DEPUTY COMMANDER OF ROYAL BRUNEI NAVY
Captain Mohammad Azrin bin Haji Mahmud, Royal Brunei Navy (RBN), assumed the appointment of Deputy Commander, Royal Brunei Navy on 15 January 2026. He was enlisted into the Royal Brunei Armed Forces in 1999 as a recruit in R Coy and subsequently attended the Royal Navy Young Officer Course at Britannia Royal Naval College. He was commissioned as an officer with the rank of Second Lieutenant in 2001.
Throughout his naval career, Captain Mohammad Azrin has held a wide range of Fleet and Staff appointments. His fleet experience includes serving as Executive Officer of the PERWIRA Class Coastal Patrol Craft, IJHTIHAD Class Fast Patrol Boats and DARUSSALAM Class Patrol Vessel; Gunnery Officer of the WASPADA Class Missile Gun Boat; and Commanding Officer of the PERWIRA Class Coastal Patrol Craft, IJHTIHAD Class Fast Patrol Boats and DARUSSALAM Class Patrol Vessel. His staff appointments include roles within the Intelligence and Operations cells of the Royal Brunei Navy, as well as at the Joint Force Headquarters as SO3 J3 (Navy). In 2014, he was attached to the Information Fusion Centre at the Changi Command and Control Centre, Republic of Singapore, as the Brunei International Liaison Officer.
Captain Mohammad Azrin's career was streamlined as an Executive Branch Officer, specialising in Communications and Electronic Warfare, prior to completing the Principal Warfare Officer Course at KD Sultan Idris I, Malaysia, in 2011. He later attended the Command and Staff Course at the Goh Keng Swee Command and Staff College in 2015, followed by the Executive Development Programme at the Sultan Haji Hassanal Bolkiah Institute of Defence and Strategic Studies (SHHBIDSS) in 2019, and subsequently the National Resilience College in Malaysia in 2025.
He has been actively involved in multilateral and regional defence engagements, including participation in the ASEAN Defence Ministers' Meeting–Plus (ADMM-Plus) Humanitarian Assistance and Disaster Relief (HADR) and Military Medicine (MM) Exercise in 2013 as staff to the Chief Exercise Controller (EXCON). He also served as Battle Staff during Exercise Mahi Tangaroa in New Zealand under the ADMM-Plus Experts' Working Group on Maritime Security. In addition, he has attended various international conferences and symposiums, including the ADMM-Plus Experts' Working Group on Maritime Security and the Western Pacific Naval Symposium (WPNS) workshops.
Captain Mohammad Azrin is married to Hajah Kharterinah Zeimah binti Haji Ibrahim and is blessed with a daughter, Adryanna Kazimah.
