The purpose of this study is to examine relationships between attachment styles and relational self-construal. The study was carried out with 376 students (223 male, 153 female) enrolled in different faculties of Bayburt University. The data was collected using the Relationship Scales Questionnaire and Relational-Interdependent Self-Construal Scale. In the study, the relationships between the attachment styles and the relational self-construal were analyzed via the Pearson correlation analysis. In order to analyze the predictive role of the attachment styles on the relational self-construal, the multiple regression analysis was used. Pearson correlation analysis indicated that the relational self-construal was positively related with the secure and preoccupied attachment styles, but negatively related with the dismissive and fearful attachment styles. According to the multiple regression analysis results, the dismissive, preoccupied and secure attachment styles accounted for 17% of the variance in the relational self-construal. Furthermore, the relational self-construal was predicted positively by the secure and the preoccupied attachment styles, but negatively by the dismissive attachment style.