These case studies complement the “Regional Seas Follow Up and Review of the Sustainable Development Goals (SDGS) – Conceptual Guidelines”, which provides good examples and practical guidance to enhance the role and contribution of regional seas to the SDG follow-up and review process, in line with UN General Assembly and UNEA resolutions and Global Meetings for the Regional Seas Conventions and Action Plans. These case studies enable more in-depth analysis for a number of regional seas, with specific suggestions and actions for the future strengthened reporting on the SDGs.