Over the past four decades, violence against women (VAW) has come to be seen as a violation of human rights and an important concern for social policy. Yet government action remains uneven. Some countries have adopted comprehensive policies to combat VAW, whereas others have been slow to address the problem. Using an original dataset of social movements and VAW policies in 70 countries over four decades, we show that feminist mobilization in civil society—not intra-legislative political phenomena such as leftist parties or women in government or economic factors like national wealth—accounts for variation in policy development. In addition, we demonstrate that autonomous movements produce an enduring impact on VAW policy through the institutionalization of feminist ideas in international norms. This study brings national and global civil society into large-n explanations of social policy, arguing that analysis of civil society in general—and of social movements in particular—is critical to understanding progressive social policy change.