Based on social identity theory (Tajfel & Turner, 1986) and distributive justice norms (Walster, Berscheid & Walster, 1976), hypotheses were set forth outlining expected changes in social evaluations of resource allocators with changes from interpersonal to intergroup situations. In interpersonal situations, fair allocators were expected to be more favourably evaluated than unfair allocators. This difference was expected to decrease, however, in weak intergroup situations (intergroup attenuation hypothesis) and reverse in strong intergroup situations (intergroup reversal hypothesis). In Expt 1 (N = 126), support for the former hypothesis was predicted and found in the minimal group paradigm. In Expt 2 (N = 82), support for the latter hypothesis was predicted and found following actual intergroup confrontation. In Expt 3 (N = 128), neither hypothesis was supported when the target and the recipients were out‐group members. The discussion extends these hypotheses to other group processes such as leadership endorsement and social influence.