This study aims to analyze the role of human relations in developing effective communication in the workplace. Effective communication is one of the most important factors in an organization's success, which depends not only on technical skills, but also on the quality of interpersonal relationships between team members and managers. Healthy human relations, which involve respectful interactions, building trust, and open communication, can support the achievement of organizational goals by creating a more productive and harmonious environment. This research method uses a qualitative approach with literature analysis and literature review techniques to identify relevant theories and previous research results regarding the relationship between individuals in the workplace and their impact on organizational communication. Data sources are taken from various scientific articles, books, and journals that discuss topics about organizational communication, human relations, and work psychology. The results of this study show that positive interpersonal relationships in the workplace play a crucial role in creating effective communication. Employees who feel valued and supported by their colleagues and employers tend to be more open to communicating information, providing constructive feedback, and collaborating efficiently. Conversely, interpersonal tension or poor communication can lead to miscommunication, conflict, and decreased productivity. The research also highlights the importance of communication training and interpersonal relationship management as part of organizational development to create a better work environment and support long-term success.