The present study examined the effectiveness of a novel 6-session, prejudice-reduction group for Greek preadolescents. The sample consisted of 106 elementary school students aged 10-12 years, allocated to the intervention (n = 55) or control group (n = 51). Results indicated that, compared to the control group, participants in the intervention group showed more positive attitudes toward refugees as well as an increase in their general capacity for empathy. In addition, intervention group participants showed more tolerance and less xenophobia. Practical implications for the design and implementation of classroom-based, prejudice-reduction programs for older children are discussed.