In the sport and physical activity (PA) field, enjoyment is a positive affective response to the sport experience (Scanlan & Simons, 1992) and it can also be considered an important factor in promoting active lifestyles and regular PA among school-aged children (Carraro et al., 2008). The aim of thepresent study was to investigate the effects of perceived sport competence on PA enjoyment. Methods Partecipants were 394 pupils (173 boys and 221 girls) aged between 12 and 13 years (M=12.2). The Physical Self-Description Questionnaire-Short (PSDQ-S; Marsh et al., 1994) and the Physical Activity Enjoyment Scale (PACES; Carraro et al., 2008) were completed. Pearson’s correlation test was used to measure the association between variables. Multiple linear regression analysis was conducted to investigate the correlation between PSDQ-S scores (independent variables) and PACES total score (dependent variable). Results Pearson’s correlation test revealed the following positive associations between PSDQ-S variables and PACES total score: endurance (r = .527, p < .001); flexibility (r = .206, p < .001); strength (r = .365, p < .001); coordination(r = .427, p < .001); sport skill (r = .546, p < .001). Multiple linear regression analysis showed the following score indices: SE = 7.76; t = 20.79; R2 = .363; F(5, 388) = 44.13; p < .001. Our results highlighted positive associations between physical self-concept scales and PA enjoyment, and our hypothesis that perceived sport competence can be considered a good predictor of PA enjoyment was confirmed. The results could contribute to our understanding of the processes involved in the promotion of active lifestyles and regular PA among young people.