The aim of the study is to investigate the power of individuals' psychological birth order to predict the perception of identity.This research, which examined the relationship between university students' identity perception and psychological birth order, was conducted according to the general survey model.Pearson Correlation Coefficient was used to determine the relationship between psychological birth order and identity perception of university students, Multiple linear regression analysis was used to determine the power of psychological birth order to predict the perception of identity and one - way ANOVA was used to test whether identity perception differs according to actual birth order. The relationship between individuals' psychological birth order and their identity perceptions was discussed and according to the results of the correlation analysis, a positive and significantly low relationship was found between positive identity perception and first child and youngest child. There is a negative and significantly low relationship between the middle and only child. While there was no significant relationship between negative identity and first child, a positive relationship was found between negative identity and middle and only child and a negative relationship was found between negative identity and youngest child. In this study, it was also investigated whether psychological birth order is a significant predictor of identity perception of adolescents. As a result of the regression analyses performed, while the predictive variables of positive identity perception were middle child, first child and youngest child, respectively; the predictive variables of negative identity perception were middle child and only child, respectively.