The WHO - UN DESA Technical Advisory Group on COVID-19 Mortality Assessment acts as an advisory body to both WHO and UNDESA on COVID-19 mortality assessment. The TAG will advise and support efforts to assist WHO and UN Member States to obtain accurate estimates of the number of deaths attributable to the direct and indirect impacts of the pandemic. The TAG comprises a global network of experts from multidisciplinary backgrounds, including epidemiologists, data scientists and analysts, statisticians, demographers, national government officers, academics, and policy makers. The work of the TAG will contribute to future editions of the World Health Statistics and World Populations Prospects reports, as well as supporting vital global efforts towards strengthening health information systems.