The purpose of this study was to determine and compare social emotional skills and prosocial behaviour among 15-16-year-old adolescent athletes and non-athletes. The measures of social emotional skills and prosocial behaviour were evaluated using Schutte Self-Report Inventory, Self-control scale, Social Skills Rating System (Student form), Bulotaite and Gudzinskiene communication skills questionnaire, revised prosocial tendencies measure. The study results revealed that adolescent sport participation has influence on social skills and strongly links to athletes' prosocial behaviour. Emotional, social and prosocial behaviours have an effect on gender differences