Dereje Abi (PhD)Esmael Hamid2026-03-032026-03-032025-09https://etd.aau.edu.et/handle/123456789/7728The main purpose of this study is to investigate the relationship between workforce diversity (including gender, ethnicity, and religion) with individual employee performance at Ethiopian Airlines Group, MRO Division. I have selected only these three variables from many work force diversity variables since they are the most determinant ones on employee performance to the researcher assumptions. To meet its purpose, primary data was collected from 308 randomly (simple random sampling) selected employees working at Ethiopian Airlines Group, MRO Division, through closed ended questionnaire. The study used both descriptive and explanatory research designs. Descriptive design was used to describe the collected data by using descriptive statistics techniques. The explanatory design was set to test cause and effect relationship between workforce diversity and Employee performance. The data was analyzed through quantitative approach of descriptive statics (frequencies, percentages, number. maximum, minimum, mean and standard deviation) and inferential statistics such as linear regression to determine the association between the effect of work force diversity and employee job performance.The finding of this study can be concluded that the performance of employees working in Ethiopian Airlines is influenced significantly by their gender, ethnic and religious diversity. It isrecommended that the organization needs to do more in diversifying the workforce in terms of gender, ethnicity, and religion to acquire lots of skill, knowledge and attitude and to increaseemployees’ job performance.en-USWorkforce diversityJob performanceEthiopian Airlines Group.Thesis