The "2015 NMC Technology Outlook for Scandinavian Schools: A Horizon Project Regional Report" reflects a collaborative research effort to inform Scandinavian school leaders and decision-makers about significant developments in technologies supporting teaching, learning, and creative inquiry in primary and secondary education across Denmark, Norway, and Sweden. It s was produced to explore emerging technologies and forecast their potential impact expressly in a Scandinavian school context. In the effort that took place from October through December 2014, a carefully selected panel of experts was asked to consider hundreds of relevant articles, news, blog posts, research, and project examples as part of the preparation that ultimately pinpointed the most notable emerging technology topics, trends, and challenges for Scandinavian schools over the next five years. The expert panel identified nine key trends, nine significant challenges, and 12 technologies to watch. Each of the 12 key technologies are profiled, each on a single page that describes and defines a technology ranked as very important for Scandinavian schools over the next year, two to three years, and four to five years. Every page opens with a carefully crafted definition of the highlighted technology, outlines its educational relevance, points to several real life examples of its current use, and ends with a short list of additional readings for those who wish to learn more. Following those discussions are sections that detail the expert panel's top ranked trends and challenges, and frame them into categories that illuminate why they are seen as highly influential factors in the adoption of technology in Scandinavian schools over the next five years. The three key sections of this report constitute a reference and straightforward technology-planning guide for educators, school leaders, administrators, policy-makers, and technologists. [This report was a collaborative effort with the Norwegian Centre for ICT in Education and the National Agency for IT and Learning in Denmark (Styrelsen for It og Laering).]