Individuals differ systematically in how much they are concerned with matters of justice or injustice. So far, in various domains of life, such as romantic relationships, work, and school contexts, dispositional justice sensitivity has been found to be a powerful predictor of individual-level processing and interpersonal behaviors. Yet, matters of justice and injustice often materialize at the group level, especially when conflicts about status, rights, and resources occur between groups. Here, we propose a theoretical framework to understand how different facets of justice sensitivity (i.e., victim, beneficiary/perpetrator, and observer sensitivities) are relevant for group-level processes in intergroup contexts. Integrating research on justice sensitivity and intergroup conflict, we develop several propositions regarding how and under which conditions justice sensitivity influences intergroup experiences, attitudes, and behaviors. We selectively review the existing empirical evidence that can speak to the validity of these propositions, and outline future research that can test our propositions.