Linguistic diversity has always been and still is one of the current issues in the Norwegian educational system. Norwegian is the official language of the country, but, there have been several distinct dialects and two official written Norwegian languages in the country since 1885. One of them is "Bokmål" and the other is "Nynorsk." There has also been an indigenous Sami people with three different Sami languages in the country: Northern Sami, Lulesami and Southern Sami in the country. At the same time there are two national minority groups, Kvens and the Roma people, who have their own languages. In addition about 200 languages are represented among linguistic minority children with immigrant parents/grandparents. This linguistic diversity means that almost 15% of Norway's population of 5 million has another first language than Norwegian. This paper gives a brief account of policies and challenges related to multilingualism and multilingual education in the Norwegian educational system.