Conflicts and crises radically affect social, economic, cultural and political structures. Such events create risks for women, girls and gender diverse people, and can exacerbate existing inequalities. However, the collapse of political and social order can also, paradoxically, create opportunities for change. There is a strong rationale for capitalizing on the juncture created by crises to transform gender norms and address the underlying causes of inequality. This is gender-transformative humanitarian action. Civil society and some humanitarian actors are increasingly arguing for humanitarian organizations to take a more feminist approach to humanitarian aid. Gender-transformative humanitarian action is an important part of a broader feminist approach.