This report reviews the data elements related to maternal and newborn health (MNH) present in the health management and information (HMIS) systems in 24 low- and lower middle-income countries. The review’s purpose is to quantify the extent to which key data elements are available in the antenatal, delivery and postpartum registers and associated summary reporting of the 24 USAID priority countries for MNH. These findings have been used and will continue to be used to inform the development of global indicators and the revision of national HMIS systems.