This study aims to examine the predictive relationships between parental and adolescent perfectionism and adolescent optimism. The study group comprises 337 children attending the sixth, seventh, and eighth grades of primary school, and their parents. The children and their parents were distributed as follows: 180 girls (53.4%) and 157 boys (46.6%); 174 mothers (51.6%) and 163 fathers (48.4%). The research study group was determined by the convenience sampling method. In the study, MPS-Multidimensional Perfectionism Scale, Child and Adolescent Perfectionism Scale, and Optimism-Pessimism Scale in Adolescents were used as data collection tools. The findings of the study indicate that the regression model is statistically significant (F (5,336)= 9.89; p=.00). Upon examining the model, it was observed that parental self-oriented perfectionism did not significantly contribute to the model in predicting adolescent optimism (t = .06; β = .003; p > .05). The other oriented and socially prescribed perfectionism of the parent and the self oriented and socially prescribed perfectionism of the adolescent contribute significantly to the model. It can be stated that the four variables that contribute significantly to the model explain approximately 13% of the variance of adolescent optimism (R2= .13). When the relative effect of the predictor variables is examined, it is evident that self-oriented perfectionism of adolescents is the variable that makes the strongest contribution to the model..