This paper aims to investigate the role of leadership behaviours on employee commitment in star-rated hotels in the Bahir Dar City Administration, mediating with organizational culture. The research is cross-sectional, and the survey method was used. The research employed quantitative and deductive approaches, and two-tailed Pearson correlation analyses, multiple-regression analysis, SPSS version 26 integrated with Process Macro Version 4.1, and the Sobel test were used to examine the hypothesis. A sample of 257 responses was collected from fourteen star-rated hotels in Bahir Dar City Administration. The analysis shows that transformational leadership and participative leadership both have a positive and significant effect on employee commitment. The findings also indicated that transformational leadership positively and significantly affects organizational culture. Furthermore, the research found that organizational culture partially mediates the relationship between leadership behaviours (transformational leadership and participative leadership) and employee commitment. In the competitive business environment, retaining skilled and talented employees is a major challenge for the organization. Numerous studies have looked into the idea that committed workers will stay with the company for an extended period. Thus, the study adds to the body of literature on predictors of employee commitment. It is noted that motivating and inspiring the employees to work efficiently and effectively and establishing a suitable organizational culture creates an effective working environment for the employees and achieves organizational goals. Hence, there is a need for star-rated hotels to design and implement strategies to motivate employees to remain in the organization. Because this study focused on leaders and employees of star-rated hotel firms in Bahir Dar, Ethiopia, the findings cannot be generalized to all leaders and employees of star-rated hotel firms.