The scope of this thesis research was to analyze the two way correlation between job satisfaction of the employees and their individual performances using Zagrebačka banka as the model, and to determine the strength of the correlation. Job satisfaction is a high priority factor for any company hence more and more are doing job satisfaction studies. Satisfied employee is a productive worker and success of the organization can not be achieved with unsatisfied employees. Likewise employees with better individual performances are more satisfied so the two way correlation of these factors becomes evident. Theoretical research was used to analyze basic theoretical aspects of job satisfaction and individual performance assessment in order to better comprehend work issues. In the empirical part of the research a survey was given to 30 employees of Zagrebačka banka in order to establish existence, strength and correlation direction between job satisfaction and individual performance. The analysis has shown that both correlations are statistically significantly positive but week. The determined H2 correlation is somewhat stronger than the H1 hypothesis correlation. Therefore it can be concluded that upgrade of individual performances is stronger in determining job satisfaction rather than vice versa. The contribution of this graduation thesis is demonstrating the lack of sufficient research regarding this topic. The strength of work satisfaction and individual performance correlation is often discussed but the direction of this correlation is equally important.