This study had a two-fold objective: first, to create a measure to assess athletes', parents', coaches' and managers' perception of the sport environment for children and second, to analyse the differences among them with respect to their perceptions of that environment. The participants -333 athletes, 333 parents, 63 coaches and 46 managers- completed the Perception of Youth Sport Environment Questionnaire, created for this investigation. An exploratory factor analysis revealed the existence of five dimensions in perceiving sport context: good refereeing, sportspersonship, educational coaches, respectful parents and competition organisation. The multivariate analyses of the sport environment dimensions based on group and gender showed that managers were the most critical agents in their evaluations of the youth sport context, including their own organisation. The results are discussed for their practical applications to coaching and managing youth sports.