Consumers’ positive dispositions relating to foreign countries, cultures, and products is an important yet under-researched topic, compared against the volume of research on consumers’ negative dispositions towards the same. Cosmopolitanism, conceptualized as a general dispositional orientation reflecting an affinity for cultural diversity and the proclivity to master it, garners increasing attention as a variable for international market segmentation. Empirical studies on cosmopolitanism are scarce, principally due to the absence of scale demonstrating sufficient cross-cultural validity across languages. This research reports on such a validation, across four countries and five languages. Psychometric evaluations entailed a number of techniques, including multi-group confirmatory factor analysis. The results largely confirm the cross-lingual applicability of the cosmopolitanism scale.