In the complex world of peacebuilding , the frequent invisibility of women has become a focus of attention. The challenge is perhaps best exemplified in the important United Nations Resolution 1325, which centers on women’s roles. This report shines a light on a distinctive category of women peacebuilders, Catholic sisters. It is set in the broader context of understanding what we mean by peacebuilding and the complex partnerships that are indispensable to it in today’s world. Catholic sisters share many challenges and assets of both religious peacebuilders and women and work with specific identities and organizational setups that merit a closer look. That look opens a vast array of ideas, actions, and challenges that enrich an understanding of what is involved on the path to building peace.