This study presents the findings of a systematic review of measures of social and emotional skills for children and young people. The growing attention to this area in recent years has resulted in the development of a large number of measures to aid in the assessment of children and young people. These measures vary on a number of variables relating to implementation characteristics and psychometric properties. The methodology of the review followed the general principles of systematic reviewing, such as systematic search of databases, the adoption of predetermined set of inclusion and exclusion criteria, and a multistage filtering process. The review process resulted in the retention of 12 measures, which are presented and discussed in relation to key issues in this area, including difficulties with the underlying theory and frameworks for social and emotional skills, inconsistent terminology, the scope and distinctiveness of available measures, and more practical issues such as the type of respondent, location, and purpose of measurement. (Contains 1 figure and 5 tables.)