The document aims to provide an overview of the scope of activities of the International Organization for Migration (IOM) in relation to the protection of unaccompanied migrant children and support for this group. It significantly draws on IOM’s operational data and programmatic information, collected through internal knowledge management tools; at the same time, this information is supplemented by a mapping of the activities of IOM Field Offices covering the period 2009–2011. This paper also benefits from a review of existing international standards and policy frameworks as well as recent research conducted on the topic of unaccompanied migrant children.