The subject of this paper is the role of interpersonal communication in preschool institutions. Interpersonal communication implies that one individual assumes the role of the author of the message and transmits it through a channel to one or more recipients. In educational institutions, as well as in institutions of early and preschool education, it is important to establish effective interpersonal communication between the educator and the child. Educators play a key role in teaching children effective communication skills, including when and how to talk about certain topics. Through successful interpersonal communication, educators have a positive effect on the child's development, especially in the cognitive and creative areas. In this sense, it is extremely important to encourage successful communication between educators and parents. When a child witnesses successful communication between parents and educators, s/he experiences a sense of security and love. The exchange of information between parents and educators ensures complete satisfaction of the child's needs, interests and optimal development. By harmonising educational practices between the family environment and the institution of early and preschool education, greater possibilities of positive influence on the child's growth are created in accordance with his/her developmental possibilities. For the purpose of this diploma thesis, research was carried out on the attitudes of teachers in preschool institutions of Split-Dalmatia County regarding the importance of interpersonal communication. A total of 96 respondents took part in the research, specifically preschool teachers, who filled out an online questionnaire specifically designed for this research. The results of the research showed that educators in preschool institutions of Split-Dalmatia County recognise the importance of effective interpersonal communication between educators and children for the overall development of the child and that they believe that effective interpersonal communication between educators and parents has a positive effect on the overall development of the child. The research also showed that there is no statistically significant difference in the views of educators in preschool institutions of Split-Dalmatia County on the role of interpersonal communication within these institutions based on many years of experience.