The purpose of this paper is to examine the effects of workforce diversity on employee performance. The survey research design method was adopted for the paper. The instrument used to gather relevant data for the study was the questionnaire. The study centred on the Nigerian Banking Sector to examine the level of diversity practiced in terms of gender, age, ethnicity and educational in Nigerian Organizations. First Bank of Nigeria Plc, Ota, Ogun State was the focal organization. A total of 81 copies of questionnaire were disseminated to the respondents of the study and they were all filled and returned and also relevant for the study. In order to attain the research objectives, four hypotheses were created. The data were collated and analyzed using the Statistical Package for Social Sciences (SPSS) percentages and frequencies tables were used to for the descriptive aspects. To test the hypotheses, Spearman Rank Correlation Coefficient Analysis was adopted, Regression Model, Anova were adopted to examine the relationship between variables and identify the influence of the independent variables on the dependent variable. The limitation to the study is that the study made use of only few aspects of workforce diversity and as such, findings can not be generalized to cover other dimensions of diversity not covered in the study. The research findings showed all aspects of workforce diversity used in the study has a significant relationship with employee performance except for ethnic diversity. It was also discovered that gender, age and educational diversity have strong influence on employee performance. Hence, based on findings, it is recommended that management continue to uphold its diversity policies and practices in order to increase the benefits of diversity. Management should ensure that all employees are properly trained on diversity issues as these trainings will also help employees to change those unconscious behaviours that hinder diversity and inclusion practices. This study will add to the already existing literature on diversity and it will help First Bank, other organizations, employees, government and the society as a whole to fully understand diversity issues, how to manage it and how to reap the benefits. Keywords: Workforce Diversity, Diversity Management and Employee PerformanceThe purpose of this paper is to examine the effects of workforce diversity on employee performance. The survey research design method was adopted for the paper. The instrument used to gather relevant data for the study was the questionnaire. The study centred on the Nigerian Banking Sector to examine the level of diversity practiced in terms of gender, age, ethnicity and educational in Nigerian Organizations. First Bank of Nigeria Plc, Ota, Ogun State was the focal organization. A total of 81 copies of questionnaire were disseminated to the respondents of the study and they were all filled and returned and also relevant for the study. In order to attain the research objectives, four hypotheses were created. The data were collated and analyzed using the Statistical Package for Social Sciences (SPSS) percentages and frequencies tables were used to for the descriptive aspects. To test the hypotheses, Spearman Rank Correlation Coefficient Analysis was adopted, Regression Model, Anova were adopted to examine the relationship between variables and identify the influence of the independent variables on the dependent variable. The limitation to the study is that the study made use of only few aspects of workforce diversity and as such, findings can not be generalized to cover other dimensions of diversity not covered in the study. The research findings showed all aspects of workforce diversity used in the study has a significant relationship with employee performance except for ethnic diversity. It was also discovered that gender, age and educational diversity have strong influence on employee performance. Hence, based on findings, it is recommended that management continue to uphold its diversity policies and practices in order to increase the benefits of diversity. Management should ensure that all employees are properly trained on diversity issues as these trainings will also help employees to change those unconscious behaviours that hinder diversity and inclusion practices. This study will add to the already existing literature on diversity and it will help First Bank, other organizations, employees, government and the society as a whole to fully understand diversity issues, how to manage it and how to reap the benefits.

Keywords: Workforce Diversity, Diversity Management and Employee Performance