This paper essentially presents an examination of the effect of organizational culture on employee commitment in Commercial Bank of Ethiopia in Bahir Dar city. A brief review of the literature reveals that these concepts studied extensively but the outcomes of various studies are somewhat inconsistent. The researcher study the effect extent of the variables and their relationship by using a more inclusive frame of reference, the paper presents a description of two models that were used as the foundation for the design of a measurement tool to investigate the topic. The objective of this study was to investigate the effect of four organizational culture traits namely, involvement, consistency, adaptability and mission on employee commitment in Commercial Bank of Ethiopia Bahir Dar city branches, A structured questionnaire was developed and self-administered to randomly selected employees of Bahir Dar City branches, Commercial Bank of Ethiopia. Data were analyzed using descriptive and inferential statistics. The results show that the four traits measuring organizational culture were all positively related with employee’s commitment within the range of r=0.147 to r=0.767. Moreover, adaptability is the most contributing organizational culture traits in the prediction of employee commitment with beta value .381. The other three organizational culture traits, in their descending order of unstandardized coefficients are involvement, consistency, and mission. Furthermore, multiple regression analysis was used to test if the four dimensions explain employee commitment. The test result indicated that adaptability culture, involvement culture and consistency culture are supported are statistically significant predictors of employee commitment while mission culture doesn’t have significant effect on employee commitment. The organization should create sense of mission that allows Commercial Bank of Ethiopia in Bahir Dar city to shape current behavior by envisioning a desired future state.