Religion could play a positive role in intergroup relations. However, this potential is usually overlooked and religion is often perceived as divisive and polarizing, perhaps even a source of intergroup conflict. This study examined religion as a possible tool for achieving positive intergroup encounters. A randomized control trial research design was used to study the contribution of religion to the enhancement of positive relations between Jewish and Arab high school students in Israel. The 255 eleventh-grade students were randomly assigned into three groups: encounters based on religious content, encounters based on social content, and a control group. Findings revealed that the religion-based intervention was more effective than the social-based one, which merely slowed down the deteriorating relationships between the groups. The results suggest that religion can serve as a common denominator for different national and social groups and be used for enhancing tolerance and understanding between conflict groups. (Contains 2 tables.)