© 2015 Elsevier Ltd. We investigated the links of the HEXACO personality factors and facets with the proclivity to apologize for transgressions, using self- and observer-reports of personality in two adult samples. The proclivity to apologize showed its strongest correlations with the honesty-humility factor, whether evaluated by the self or a knowledgeable observer. Agreeableness was a positive correlate of the proclivity to apologize in one sample only. In both samples, self-reported conscientiousness was positively associated with a proclivity to apologize. We also obtained self-reports on the guilt and shame proneness scales, given the strong conceptual link between guilt and apology. The proclivity to apologize was associated positively with facets of guilt (especially Negative Behavior Evaluation) but negatively with one facet of Shame (Withdrawal).