PurposeThe purpose of this paper is to investigate the impact of materialistic values on purchase intention (PI) toward green products among consumers in Vietnam and Taiwan, two Asian countries with different levels of economic development.Design/methodology/approachThis research employs the extended theory of planned behavior (TPB) with an integration of materialism. To serve the purpose of this study, two consumer surveys were conducted in Hanoi (Vietnam) and Taipei (Taiwan). The structural equation modeling was employed to test the proposed model and hypotheses.FindingsThis study examined the impact of some antecedents of green PI among consumers in Vietnam and Taiwan, focusing on the indirect impact of materialistic values (through attitude). All five hypotheses received support from the Vietnam data, confirming the significant impacts of materialistic values (i.e. success and happiness) on attitude, and all three antecedents from the TPB model (i.e. attitude, subjective norms and perceived behavioral control) as positive predictors of green PI. For the Taiwan data, the findings were similar to those from the Vietnam data, except insignificant impact of success value on attitude toward buying green products.Originality/valueThis research is expected to contribute to the extant literature by enriching the knowledge of the interesting and important relationship between materialistic values and green purchase behavior among consumers in two Asian markets where, to the author's best understanding, only modest research effort has been given to explore this topic.