Seaweeds, an important component of the Blue Economy of Bangladesh, have the potential to significantly increase both the national GDP and the standard of living in coastal communities. Seaweed with huge medical value and an excellent cuisine has exporting prospects as seafood to earn huge amounts of foreign cash. Moreover, the biochemical, medicinal, and cosmetics industries use seaweed as a component of different products. Many Southeast Asian nations have a highly developed seaweed industry (e.g., China, Indonesia, and the Philippines). An area of 47,201 km2, or 32% of the country, is made up of 19 districts in Bangladesh’s coastal region. The coastal environment, which includes muddy and sandy coastlines, estuaries, and mangrove areas, can provide an appropriate habitat for seaweed growth. Eight out of the 133 kinds of seaweed that are abundantly available in Bangladesh are commercially significant. Nowadays, seaweed production is being tried on Bangladesh’s coastline, and many government and non-government organizations are carrying out various seaweed culture/research programs. Some of the findings are good but not up to the mark. They are attempting to lessen the issues they are now encountering. Several strategies are being used to address the risk issues. For Bangladesh’s seaweed culture to be effective, ongoing study is required to improve the technologies for the production of various commercially significant seed stocks and their advancements. To find ideal locations for widespread seaweed cultivation, thorough surveys must also be carried out for the expansion of seaweed cultivation.