In order to assess the impact of culture on state behavior in international crises, specifically with regard to mediation and its outcome, this study tests hypotheses rooted in both the international relations and the cross-cultural psychology literatures, implementing analysis at both the international-system level and the domestic-state-actor level. At the international system level, the study finds that cultural difference between adversaries affects whether or not mediation occurs during an international crisis but has no effect on tension reduction. At the domestic state actor level, we find that there are certain facets of cultural identity that make a state more or less open to requesting or accepting third-party mediation during an international crisis, but that these facets have no effect on tension reduction.