Canadian Armed Forces (CAF) personnel encounter unique challenges associated with their service, including exposure to potentially morally injurious experiences (PMIEs). PMIEs are defined as events involving perpetrating, observing, or failing to prevent acts that transgress one's moral beliefs. Often, PMIEs lead to psychological distress associated with morally transgressive acts, known as moral injury. Despite its clinical importance, few studies have investigated risk factors for moral injury. It is, however, plausible that the "Light Triad" personality traits may place Veterans at greater risk for developing moral injury due to their relations with guilt and shame. The purpose of this research is to evaluate associations between the Light Triad of personality on moral injury among CAF Veterans. We hypothesized that Veterans reporting higher levels of the Light Triad traits would report higher levels of moral injury outcomes associated with both their experiences in the military and hypothetical PMIE-based scenarios than those lower in the Light Triad traits. We administered an online survey to a sample of 98 CAF Veterans (77 men, 21 women) with representation from each province. Contrary to expectations, regression analyses revealed that faith in humanity was strongly and negatively associated with moral injury, whereas as predicted, it was unrelated to PTSD. Ordinal logistic regression further showed that the Light Triad was not significantly associated with perceived psychological distress following presentation of morally injurious or fear-based scenarios. Although findings were unexpected, it is possible that limited statistical power influenced the results. For instance, a non-significant Bonferroni-corrected correlation of -.23 between trust violation-related moral injury and humanism represents a small-to-medium effect, suggesting that this association may have reached significance with a larger sample. Future research should replicate these findings with greater statistical power and examine the potential unexpected yet protective role of prosocial dispositions in mitigating the impact of moral injury.