Study aim: To determine and evaluate the spectrum of sport motivation of young adults.Material and methods: A group of 600 subjects, aged 17 - 19 years, participated in the study. An ad hoc questionnaire was applied to assess the 4 motivational factors: competition and success-oriented motivation, external accommodation, physical fitness and health + sportsman-like attitude, and hedonistic.Results: Competition, contest, victory and beating own benchmark were the important factors for male students. The female students preferred external adequacy and others' opinion. They believed in the importance of healthy living, physical strength and sports give them better appearance. The motivational factors had more importance amongst active than inactive youths. Young active students believed that sport performance would guide them to success.Conclusions: It is important to keep healthy lifestyle and sport motivation before teenage years since it is a guidance to preserve the health and adequate personality development.