Both Generation X and Y currently work at organizations and companies together. Responding to expectations of both these Generations with the same tools may satisfy one group but upset the other. Thus, if factors related to work stress and the job satisfaction are different for Generation X and Y as suggested by the theory, these differences will have to define being Generation X or Y. Based on this inference, the aim of the study is to research whether or not the level of the work stress and job satisfaction of Generation X and Y can accurately classify these two Generations.The study is a quantitative research. The scope of the research is the Head Office and Istanbul branches of Participation Banks. Three scales were used in the collection of data, namely being Generation X or Y, work stress and job satisfaction. The job satisfaction scale was the Minnesota Satisfaction Questionnaire created by Weiss et al., (1967). Being Generation X or Y and the work stress scale were created by benefiting from literature. Logistic Regression method was used in the analysis of the data. SPSS software was used for data analysis. A total of 392 survey data were analyzed to reach the findings. Research hypotheses are “perceived job satisfaction has a significant impact on the prediction of being designated as Generation X or Y” and “Perceived job stress has a significant impact on the prediction of being designated as Generation X or Y”According to the results of the research, perception levels of work stress and job satisfaction cannot predict to be Generation X or Y significantly. There is no relationship between job satisfaction and work stress factors with being Generation X and Y. These factors affect the X and Y generations similarly.