Education is one of the most important fields to promote the integration of refugee and newcomer children and youths in host countries. However, holistic education for refugee and newcomers has so far not been established into mainstream education systems in European countries. Projects and pilot programmes have developed across Europe to test holistic approaches. Some of them have started very recently as a response to the arrival of high numbers of refugees and newcomers, while others have been established for a longer period and have started to expand. This paper first provides an overview of key research gaps in refugee education. It then provides a mapping of promising holistic education practices in Europe, with a focus on Germany, Greece and the Netherlands. Based on this, the paper explores key conditions to upscale and institutionalise promising practices of holistic refugee and newcomer education.