Background: In Europe, Internet and Information and Communication Technologies (ICT) open a world of possibilities for children, and expose them to various risks as well. The Safer Internet Programme promoted by the European Commission aims to protect young people online. Goal: The study seeks to identify how European national education systems approach online safety issues faced by children and what children learn about Online Safety (OS) in school; and this reprint shares European experience internationally in promoting online safety education. Research Method: Data was collected by the Eurydice Unit of the EU Education, Audiovisual and Culture Executive Agency (EACEA) with the collaboration of the National Eurydice Units. Thirty-four Eurydice Units representing 30 European countries participated in this study voluntarily. Results: The majority of the countries under study address online safety education in both Primary and Secondary schools, and integrate it in various subjects in school curriculum. Teachers with training teach it, and the educational authorities collaborate with other public or private organisations. (Contains 7 figures and 3 footnotes.)