The WHO Mortality Database was updated in February 2025, incorporating the latest mortality and population data reported by Member States. It is a comprehensive compilation of mortality data reported annually through civil registration and vital statistics systems. The database is the leading global source for comparative epidemiological studies of mortality by cause and provides access to cause-of-death data from 1950 to the present. It is accompanied by a visualization portal that enhances accessibility, impact and relevance by allowing users to explore and export data in multiple formats. The mortality data are organized according to revisions of the International Classification of Diseases (ICD), with detailed data available from ICD-7, ICD-8, ICD-9, and ICD-10. For the purposes of road safety research, the database provides information on the number of deaths due to road traffic crashes, the road fatality rate per 100,000 population, and the percentage of road traffic crash deaths out of total deaths, enabling robust monitoring and analysis of this major public health issue.