Аннотация:Studying personality traits in children and adolescents is valuable, because they can predict a number of important outcomes. The Big Five Questionnaire – Сhildren (BFQ-C) is a questionnaire for 9-14 year-olds used to measure the Big Five personality traits. No analogous psychometric instruments exist or Russian-speaking children of this age group, so our goal was to adapt it into Russian and assess the psychometric properties of the adapted version of the questionnaire. We show evidence of adequate factorial validity and internal consistency of the adapted version in two groups of school-age Russian students.