--- - |2 Abstract The present research seeks to show that culture‐specific variables can moderate the impact of general determinants of intergroup discrimination, usually assumed to operate identically across cultures. The present paper reports the results of two studies testing the hypothesis that, in France, the cultural norm of new laïcité (a French‐specific ideology of secularism) can moderate the impact of the perceived host culture adoption and national identification on discrimination against immigrants. We conducted a correlational study (Study 1, N = 249) and an experiment (Study 2, N = 143) using two distinct and previously validated measures of intergroup discrimination. Results showed that the higher the perception of a norm of new laïcité, the stronger the link between host culture adoption and national identification. More specifically, among native French people, the perception of a weak host culture adoption and a weak national identification on the part of immigrants produced higher levels of discriminatory behavior especially when the intergroup norm of new laïcité was high. These studies highlight the fundamental importance of taking into account culture‐specific variables in the study of discrimination and point to the fact that, by changing the normative context, one may change intergroup behaviors. Reducing intergroup discrimination in applied settings may require targeting culture‐specific intergroup norms. - Journal of Applied Social Psychology, Volume 48, Issue 9, Page 506-518, September 2018.