Discrimination affects millions of children in the United States and throughout the world. Although the topic is important for both theoretical and applied reasons, little developmental work has examined children's perceptions of discrimination directed toward themselves and others. A review of past theoretical and empirical work on the perception of discrimination is provided. Next, a developmental model of the perception of discrimination is offered. The model identifies developmental and individual differences expected to influence judgments about discrimination, as well as situational variables that are likely to support attributions to discrimination.