In an effort to establish an evidence base for child marriage in humanitarian settings generally, and for South Asia in particular, the United Nations Population Fund (UNFPA) Asia and the Pacific Regional Office (APRO) and the United Nations Children’s Fund (UNICEF) Regional Office for South Asia (ROSA) partnered with the Women’s Refugee Commission and the Center for Humanitarian Health at the Johns Hopkins Bloomberg School of Public Health to conduct two country studies on child marriage in humanitarian settings in Bangladesh and Nepal.