This study is motivated by Indonesia's ranking as the third most fatherless country in the world according to data from Narasi. The absence of a father in a child's life can shape their self-concept, particularly in girls, and interpersonal communication plays a crucial role in the process of social adjustment. This study aims to investigate how interpersonal communication between fathers and daughters occurs, to understand the self-concept of girls experiencing fatherlessness, and to identify the factors of interpersonal communication in shaping the self-concept of girls experiencing fatherlessness. The research method used in this study is descriptive qualitative, employing observation, in-depth interviews, and documentation. The results of the study indicate that the self-concept of girls in fatherless conditions can be shaped by effective patterns of interpersonal communication. Daughters who lack effective interpersonal communication with their fathers tend to have negative self-concepts, but this can be minimized through adequate social support, such as daughters whoreceive support from family, friends, or an environment that can help develop a more optimal self-concept, even if the father's role is not fully fulfilled.