Research on women and post-conflict reconstruction tends to focus primarily on women as victims and passive targets for aid rather than conceptualizing peacebuilding as a process where greater participation by women may help increase the prospects for success. Here, I argue that women’s social status is a dimension of social capital that is largely independent of general economic development. Societies and communities where women enjoy a relatively higher status have greater prospects for successful peacebuilding, as cooperation by the local population with peacebuilding policies and activities increases. Thus, in the presence of a UN-led peacebuilding operation, women’s status has a direct and independent impact on post-conflict reconstruction. The theoretical claims are empirically assessed by looking at variation in levels of cooperation and conflict during the UN peacebuilding missions within the countries of Sierra Leone and Liberia.