Intentional homicide is serious in nature and recorded by multiple data sources (police and public health). As such, it is widely accepted as one of the most accurate, reliable and comparable crime indicators for world crime trends and patterns. Using data from the United Nations Surveys on Crime Trends and the Operations of Criminal Justice Systems (UN-CTS) and the latest homicide statistics dataset of the United Nations Office on Drugs and Crime, this publication provides a global overview on levels and trends of intentional homicide and its relationship with, and impact on, human development. It also examines the links between homicide and some forms of organized crime, including drug trafficking, as well as the use of firearms. The study describes characteristics of homicide victims and perpetrators (including from the gender perspective) as well as provides detailed data on homicide location.