The current arrangements for the management of the marine resources of Bangladesh are not adequate for sustainable management. Marine Spatial Planning (MSP) may be a tool to achieve sustainable management of marine resources. The Government of Bangladesh is planning for the development of MSP for sustainable management of the marine resources in the Bay of Bengal. However, a clear understanding of the current and required legal and institutional arrangements for the development of MSP in Bangladesh is essential for sustainable management of the marine resources. This article analyzes the current legal and institutional arrangements concerning the management of marine resources and explores potential inadequacies for the development of MSP for sustainable management. The article refers to the legal and institutional arrangements of other coastal states which have already developed MSP to find out the required arrangements for the development of MSP in Bangladesh.