Risk analysis is an essential component of a national aquatic organism health strategy. Now widely applied in many fields, risk analysis provides a science-based framework for evaluating hazards, determining the likelihood and extent of potential harms, mitigating risks and guiding policy decisions. Combining risk and value chain analysis provides a risk-based and people-centred approach to managing disease risks and planning control measures for aquaculture systems. FAO organised a training course on Risk Analysis in the Value Chain from 3-5 September in Bangkok, Thailand, in partnership with NACA, INFOFISH, Thailand Department of Fisheries and the ASEAN Network of Aquatic Animal Health Centres. Financial support was provided by the Norwegian Agency for Development Cooperation and Thailand Department of Fisheries.