The First 1000 Days in the Nordic Countries is a Nordic collaborative project, launched as part of the 2019 Icelandic Presidency of the Nordic Council of Ministers, with the aim to support healthy emotional development and good mental health during the first 1000 days of life (from conception to the age of two). The first phase involved a situation analysis in which extensive data was gathered from across the Nordic countries about practices to support wellbeing and identify early risk factors in prenatal care, infant and child healthcare and early childhood education and care. The results are presented in this report with detailed country profiles and a comparison across countries. Significant strengths and challenges are identified when it comes to supporting young children's wellbeing within the Nordic region and examples of good practice from each participating country are offered.