Teachers’ organizational commitment is a key determinant of educational quality; however, previous studies indicate that the psychological and managerial factors influencing it have not yet been comprehensively integrated within a single analytical framework. This study aimed to analyze and examine the contributions of transformational leadership, work ethic, work discipline, and job satisfaction to teachers’ organizational commitment, both individually and collectively. The study employed a quantitative approach using an ex post facto research design. The participants consisted of 121 elementary school teachers selected through random sampling based on the Krejcie and Morgan sampling table from a population of 175 teachers. Data were collected using Likert-scale questionnaires that had met validity and reliability requirements. Data analysis was conducted through descriptive statistics, prerequisite tests, simple regression, multiple regression with four predictors, and analyses of effective and relative contributions using SPSS 20 software. The results revealed that all four independent variables made significant contributions to teachers’ organizational commitment, both partially and simultaneously. These findings indicate that the integration of leadership dimensions and individual internal factors can synergistically strengthen organizational commitment. The implications of this study underscore the importance of a holistic approach to human resource management in education and provide a conceptual contribution to the development of models for enhancing teachers’ organizational commitment.