This review focuses on national and subnational Mediterranean diet (MD) and Nordic diet (ND) interventions and policies in the WHO European Region. In the context of increasing noncommunicable disease (NCD) burden and unhealthy diets, there is a need to continue identifying optimal, evidence-informed diets and interventions for the prevention and control of NCDs. The MD and ND have been identified as region-specific healthy diets. To support decision-makers in shaping context-specific diet and nutrition policies, this review provides a summary of the NCD burden and activities in the Region; outlines the NCD-related health benefits of the MD and ND; describes interventions and policies in 15 countries; reviews four identified studies into the effectiveness of MD and ND policies on NCD outcomes; and discusses policy implications and options. In the context of MD and ND interventions for NCDs, there remains a Region-wide need to increase translation of evidence into action, monitor and evaluate the impact of existing policies on NCD outcomes and share activities through public platforms to support information sharing.