Interreligious peacebuilding is one of the oldest methods used in peacebuilding around the world, as religion is often one key factor in war and used both to fuel conflicts or to promote peace and co-existence. However, the use of interreligious dialogue in post-conflict societies is still not fully understood and researcher has still not encapsulated its different components. The purpose of this study was therefore to provide understanding of the use of interreligious dia-logue in a highly sectarian societies as contemporary Lebanon is. Therefore, to explore and contribute to this research field, I conducted semi-structured interviewees with a local peace-building organisation in Lebanon. The findings were analysis with an analytical framework, based on intergroup contact theory and research methods on religious dialogue. This study il-lustrated the challenges and opportunities Lebanese peacebuilders face when conducting dia-logues in a very religiously divided society. The findings presented that the affective and cog-nitive effects from interreligious dialogue do varies between individuals depending on their own view on being a majority or minority religion and their own prejudice against other beliefs. Therefore, this paper contributes to new insight on the effects of contact theories relevance in sectarian societies and could be utilised to enhance the peacebuilding efforts in Lebanon.