Seaweeds production can play a significant role in catalyzing sustainable aquaculture activity in many developing countries. Despite having over 8500 km2 (<5 m depth) exploitable coastal area and 335 different types of natural populations of seaweeds, only few species are cultivated on a limited scale due to environmental, technological and socio-economic constraints. OiLAB members were contributed in a project, funded by the Food and Agriculture Organization of the United Nations (FAO) that aimed to assess present status with major challenges of seaweed production, processing, value addition and marketing to tap its potential role in food security and community resilience. The project team collected primary data visiting to seaweed farming sites, and consulting with farmers and relevant stakeholders to better understand the present status of seaweed culture, existing challenges and a possible way forward. Through quantitative and qualitative analyses, this study determined potential contribution of seaweeds toward achieving several targets of United Nations sustainable development goals (SDGs) and the blue economic development in Bangladesh. A roadmap for seaweed-based new frontiers with necessary interventions have been suggested to promote the seaweed industry in Bangladesh. The strategies to leverage key activities include – (1) zooning of seaweed farming areas, (2) farming intensification and integration, (3) seed bank for commercially important seaweed species, (4) post-harvest management, (5) value-added products and market development, and (6) establishing seaweed-based forward linkage sub-sectors. The project was concluded that the future of seaweed farming in Bangladesh will likely depend upon suitable site selection followed by adaption of improved culture techniques, production volume and market demand