Since research indicates that frequent and intense anger that is expressed aggressively or suppressed is detrimental to an individual's well-being and leads to negative outcomes in physical health and interpersonal relationships (Johnson & Greene, 1992, McKay & Rogers, 2000, Tangney, Wagner, Hill-Barlow, Marschall, & Gramzow, 1996), determining how religion might contribute to healthy or unhealthy styles of anger expression is important. Therefore, the current study examines the relationship between Allport and Ross' (1967) religious orientation (intrinsic, extrinsic, non-discriminate pro-religious, and non-discriminate non-religious) and anger expression styles in adolescents (specifically anger-in, anger-out, and anger-control) using the Religious Orientation Scale-Revised and the State-Trait Anger Expression Inventory. A sample of 192 16–18 year-olds were studied using two clusters of variables. The first cluster examined the relationships between intrinsic religiosity, anger experience and expression, stress, self-esteem and guilt and the second cluster examined the relationships between extrinsic religiosity, anger experience and expression, stress, self-esteem, and shame. The results of this study suggest that intrinsic and extrinsic religious orientations are associated, respectively, with decreases in the frequency and intensity of anger experiences but only extrinsic religiosity was associated with an anger expression style (Anger Expression-In). Religious participation can reduce the frequency and intensity of anger experiences, which can contribute to positive physical and mental health outcomes.