Street children is a term for children experiencing poverty (homelessness) who are living on the streets of a city, town, or village. Homeless youth are often called street kids and street youth; the definition of street children is contested, but many practitioners and policymakers use UNICEF’s concept of boys and girls, aged under 18 years, for whom "the street" (including unoccupied dwellings and wasteland) has become home and/or their source of livelihood, and who are inadequately protected or supervised.
Street people are sometimes called gamines, a term that is also used for Colombian street children of either sex.
Some street children, notably in more developed nations, are part of a subcategory called thrownaway children who are children that have been forced to leave home. Thrown-away children are more likely to come from single-parent homes. Street children are often subject to abuse, neglect, exploitation, or, in extreme cases, murder by "clean-up squads" that have been hired by local businesses or police. In Western societies, such children are treated as homeless children rather than criminals or beggars.
Street children is used as a catch-all term, but covers children in a wide variety of circumstances and with a wide variety of characteristics. Policymakers and service providers struggle to describe and assist such a sub-population. Individual girls and boys of all ages are found living and working in public spaces, and are visible in the great majority of the world’s urban centers.
Street children can be found in a large majority of the world's cities, with the phenomenon more prevalent in densely populated urban hubs of developing or economically unstable regions, such as countries in Africa, Eastern Europe, and Southeast Asia.
According to a report from the Consortium for Street Children, a United Kingdom-based consortium of related non-governmental organizations (NGOs), UNICEF estimated that 100 million children were growing up on urban streets around the world. Fourteen years later, in 2002, UNICEF similarly reported, "The latest estimates put the numbers of these children as high as one hundred million". More recently the organization added, "The exact number of street children is impossible to quantify, but the figure almost certainly runs into tens of millions across the world. It is likely that the numbers are increasing." The one hundred million figure is still commonly cited for street children, but has no basis in fact. Similarly, it is debatable whether numbers of street children are growing globally, or whether it is the awareness of street children within societies that has grown.