This research study examines the moderating effect of perception and attitude on Indonesian consumers’ purchase intention towards foreign MNEs in the banking and retail industry. In particular, it looks into how nationalism, ethnocentrism and foreign animosity among the different age group strata in Indonesia have shaped their perception and attitude towards foreign MNEs which in turn influence their purchase intention. The findings show that consumers’ purchase intention towards foreign MNEs is negatively correlated at a very significant level to their perception and attitude as shaped by their nationalism, ethnocentrism and foreign animosity background. The more nationalistic, ethnocentric or foreign hostile an individual is, the more negative their perception and attitude towards foreign MNEs will be. Consequentially, the individual’s purchase intention to the said MNEs will drastically decrease the more negative one’s perception and attitude become.