The aim of the work is to present the problem of organizational loyalty among representatives of the Y generation, stereotypically perceived as selfish, arrogant and disloyal. Based on the results of three studies (N1 = 336, N2 = 213 and N3 = 118), the level of organizational loyalty in three age groups was compared (younger and older representatives of Generation Y and employees from generation X). There was also analyzed the relationship between loyalty and job satisfaction, and between loyalty, and organizational justice. The obtained results allow to state that loyalty is moderately related to organizational factors (satisfaction, perceived justice) and that a similar pattern of dependence occurs in all distinguished age categories. The results show that loyalty grows with age, and employees by the age of 30 have significantly lower level of loyalty to the organization compared to employees from their parents’ generation.