This research aims to analyze the predictive role of self-esteem, attachment styles, and family of origin functions in explaining conflict resolution in romantic relationships. A total of 265 adult participants were administered Demographics Form, Conflict Resolution Styles Scale (CRSS), Rosenberg Self-Esteem Scale (RSES), Experiences in Close Relationships-Revised (ECR-R), and Family Assessment Device (FAD). Correlational design was used to examine relationships between variables. Multiple linear regression analysis was carried out within the aim of the study. According to the results, the predictive role of attachment styles and family of origin functions on conflict resolution was significant. However, self-esteem was not found to have a significant predictive role in conflict resolution. Findings were discussed along with current literature, and theoretical implications and suggestions for future research were presented.