The Asian-Pacific Resource and Research Centre for Women (ARROW) partnered with UN Women for this study, which aims to understand the capacity gaps experienced by civil society organizations (CSOs) to advocate for gender mainstreaming in climate change and disaster risk reduction plans, policies and projects in the three pilot countries of Bangladesh, Cambodia and Vietnam. This report, prepared from 2019 to 2021, is part of UN Women’s programme on Strengthening Human Rights and Gender Equality through Climate Change Action and Disaster Risk Reduction (EmPower: Women for Climate-Resilient Societies Project) which is supported by the Swedish International Development Cooperation Agency (Sida). This country brief for Vietnam summarizes the results of a primary study done to understand the existing gaps that CSOs experience in advocating for gender mainstreaming in policies and programmes at different levels.