Rapid gender assessments of 12 projects in four countries were undertaken as part of the Asian Development Bank's commitment to improving aid effectiveness. The assessment of three loans in Viet Nam found that positive gender equality results were achieved due to the implementation of gender action plans. Gender action plans were effective tools for ensuring that both women and men participated in and benefited from projects. Gender equality results and gender action plans contributed directly to achieving loan outcomes and improved project effectiveness. This report discusses the gender equality results achieved for each project, summarizes factors that enhanced the quality of project design and implementation, and makes recommendations to maximize gender equity as a driver of change.