The Ministry of Defence (Malay: Kementerian Pertahanan; Jawi: كمنترين ڤرتاهنن‎), abbreviated MINDEF[1] or KEMENTAH,[2] is a ministry of the Government of Malaysia that is responsible for defence, national security, army, navy, hydrography, air force, armed forces, intelligence services, counterintelligence, military intelligence, national service, and veterans affairs.

Ministry of Defence was established on 31 August 1957 and officially began operations in a building located in Brockman Road (now Jalan Dato' Onn), Kuala Lumpur.

This building also housed the office of the first Defence Minister, the late Tun Abdul Razak bin Datuk Hussein, who served from 31 August 1957 to 22 September 1970.

The first building of the Ministry of Defence was constructed by the Federal Government at a cost of RM122,000.00 and was officially opened by Tun Haji Abdul Razak bin Datuk Hussein on 18 March 1960.

The building constructed in Jalan Padang Tembak also housed the Chiefs and Officers of the Malaysian Armed Forces of the three services.