Entrepreneurial self-efficacy holds significant importance due to its broad influence, benefiting not just entrepreneurs but also extending its impact to other domains. This is why it is so important to have an understanding of the factors that are at its core. Our primary aim is to investigate the influence of family communication on entrepreneurial success. In doing so, we will explore mediating factors, with a particular focus on entrepreneurial self-efficacy. In 2021, we carried out a survey targeting entrepreneurs, utilizing four self-descriptive questionnaires for data collection purposes. Family Assessment Scales, The Entrepreneur's Family Communication Questionnaire, The Entrepreneurship Efficacy Scale, and The Questionnaire of Entrepreneurial Success. The study involved conducting descriptive, correlation, and path analyses. The findings indicate that family communication plays a crucial role as a psychological factor in elucidating entrepreneurial success.