Organizational Citizenship Behavior (OCB) plays a pivotal role in enhancing the performance and success of educational institutions. Therefore, the aim of this study is to examine English as a Foreign Language (EFL) instructors’ perceptions and manifestations of OCB. Ten instructors were interviewed using a qualitative phenomenological method and research design. Thematic analysis revealed that instructors actively engage in all five dimensions of OCB: Courtesy, altruism, sportsmanship, civic virtue, and conscientiousness. Mutual support, proactive communication, commitment to professional development, maintaining a positive attitude, and participation in organizational activities are the points that the participants emphasized in the study. The participating instructors reported that they actively utilized mutual support mechanisms and demonstrated altruistic behaviors aimed at assisting their colleagues. Additionally, behaviors such as engaging in proactive communication, proposing solutions to institutional challenges, and maintaining a positive attitude were commonly highlighted. The educators described their commitment to professional development opportunities and voluntary participation in organizational activities as elements that enhance educational environments. In this context, within the dimension of sportsmanship, the ability to exhibit resilience and remain open to collaboration when faced with institutional difficulties stood out. In the dimension of civic virtue, the educators' involvement in decision-making processes within the institution and their advocacy for organizational values were noteworthy. The results of the research show that promoting OCB in educational settings will both strengthen the collaboration among instructors and create a positive atmosphere throughout the institution. This is considered a strategy that will increase organizational success and student achievement in the long run.