Objectives. The present study aimed to investi-gate the generational and gender differences in narcissism score, and value orientation among Slovakian generations Y and Z.Sample and settings. The sample of the research consisted of 955 participants, 192 men and 763 women. Generation Y consisted of 501 respon-dents and generation Z consisted of 454 respon-dents. The 16-Item Narcissistic Personality In-ventory and Portrait Values Questionnaire were administered.Hypotheses. The score of narcissism is higher in generation Z compared to generation Y and there are no differences in the value preference between these generations. There is a positive relationship between the narcissism score and individualistic values and negative relationship between narcissism score and collectivist va-lues.Statistical analyses. Descriptive statistics: per-centage, averages and standard deviations. In-ferential statistics: ANOVA, Pearson corelation analysis, Z-test for independent samples, mul-tiple linear regression. The obtained data were analyzed by SPSS.Results. The results revealed higher narcissi-sm scores among generation Y in comparison to generation Z, with men having a higher rate of narcissism. The results indicated differen-ces between the generations and gender in the preference for the values of power, hedonism, stimulation, benevolence, universalism and se-curity. The data supported significant positive relationship between narcissism and individu-alistic values; negative relationship between narcissism and collectivist values, regardless of gender and generation. The preference for indi-vidualistic values was predicted by the narcissi-sm and generation; within collectivism, only the narcissism proved to be a significant predictor.Limitations. The limitations result from data collection, research design, the nature of the re-search group and the methods used. The results are valid for the researched group only.