The OECD Shipbuilding Committee Peer Review of the Japanese shipbuilding industry provides a comprehensive analysis of its structure, market trends, and national strategies. The report highlights Japan’s role as the world’s third-largest shipbuilder and its strategic focus on high-value-added, eco-friendly vessels. While identifying structural challenges like an aging workforce and high production costs, the review emphasizes growth opportunities through Digital Transformation (DX) and Green Transformation (GX), particularly in zero-emission vessel development and smart manufacturing. The report is structured into three parts: a global perspective on Japan’s market standing, an analysis of the integrated shipbuilding and marine equipment ecosystem, and a SWOT-based assessment of the industry’s competitiveness.