The United Nations Decade of Ocean Science for Sustainable Development (2021–2030 – UN Decade of Ocean Science) is a global initiative led by the United Nations to promote ocean science and sustainable management of marine ecosystems. The program aims to strengthen international cooperation, generate knowledge, and develop innovative solutions to protect the ocean, support sustainable development, and address challenges such as climate change, biodiversity loss, and pollution. It brings together governments, research institutions, and stakeholders worldwide to advance science-based policies and practices for healthy and productive oceans.