The Ministry of Defence (MoD) (Bengali: প্রতিরক্ষা মন্ত্রণালয়) is a Bangladeshi government ministry. The MoD is headed by the Minister of Defence, a civilian and member of cabinet. The post is usually held by the Prime Minister of Bangladesh, who also serves as the President's second-in-command of the military. The MoD exercises supreme command authority over the Bangladesh Armed Forces.

Parliament is constitutionally responsible for working with the president and the service chiefs in ensuring the nation's defence. In practice, however, members of Parliament have never played a significant role in either national defence planning or defence budgeting, the Defence Secretary does.^[2]

The list of agencies and departments under the Ministry of Defence of Bangladesh are given below:^[3]

The functions of the MoD are:^[5]

• Protecting the sovereignty of Bangladesh.
• Defence Services of Bangladesh and Armed Forces attached to or operating with any of the Armed Forces of Bangladesh excluding planning, co-ordination and arrangement of mobilisation of the defence services on declaration of national emergency/war and co-ordination and control of the activities of the defence services when deployed in aid of civil administration.
• Army, Naval and Air Force Works
• Production of cypher documents
• Bangladesh Ordnance Factories (Produce Ammunition and Arms for Bangladesh Army)
• International Red Cross and Geneva Conventions in so far as these affect belligerents
• Gallantry awards and decorations in respect of forces under its control
• Military Lands and Cantonments
• Meteorological Observations
• Pardons, reprieves and respites, etc., of all personnel belonging to armed forces
• National Services and Bangladesh National Cadet Corps (BNCC)
• Running the Cadet Colleges
• Matters relating to Space Research and Remote Sensing Organisation (SPARRSO)
• Civil Services paid from Defence Estimates
• Hydrographic Surveys and preparation of navigational charts (excluding Hydrographic surveys in the inland water of Bangladesh and preparation of charts for inland navigation)
• Survey of Bangladesh
• Budget legal and statutory matters of the Armed Forces
• Secretarial administration including financial matters
• Administration and control of subordinate offices and organisations under this ministry
• Liaison with International Organisations and matters relating to treaties and agreements with other countries and world bodies relating to subject allotted to this ministry
• All laws on subjects allotted to this ministry
• Inquires and statistics on any of the subjects allotted to this ministry.
• Fees in respect of any of the subjects allotted to this ministry except fees taken in courts