The conference European Migrant Children: What Protection? was organized by ECPAT Bulgaria, ECPAT Netherlands, the Nobody’s Children Foundation, Save the Children in Albania and Terre des hommes in the framework of the Mario project (a joint effort of influential NGO players in the field of child protection, to enforce better protection of migrant children in Europe and put pressure on European and national decision-makers to better protect children from exploitation, abuse and trafficking). The conference aimed at drawing the attention of European institutions and EU Member States to the lack of protection of migrant children who hold citizenship of one EU Member State and who are involved in street based activities in another Member State, either travelling alone or within their families. The report includes recommended actions that could bring about positive changes in the lives of vulnerable European children who move from one Member State to another.