["Scandinavian Journal of Psychology, EarlyView. ", "\nABSTRACT\nThis study aimed to investigate the psychometric properties of the Norwegian 200‐item version of the HEXACO Personality Inventory‐Revised (HEXACO‐PI‐R). The sample consisted of 460 adults (51.3% women) aged 18–75 years (M = 41.5, SD = 15.3) who completed the instrument online. The average internal consistency was α = 0.89 for domains (range: 0.88–0.92) and α = 0.79 for facets (range: 0.60–0.87). Women had higher Emotionality (d = 1.08) and Honesty‐Humility (d = 0.39) scores than men. Honesty‐Humility scores increased with age. One month test–retest correlations ranged from 0.90 to 0.95 for domains. Exploratory structural equation modeling provided superior fit compared to confirmatory factor analysis (CFI = 0.928 vs. 0.647). Configural and metric invariance were supported across gender and age, with partial scalar invariance. Convergent validity with the Mini‐International Personality Item Pool (Mini‐IPIP) was strong for Extraversion, Conscientiousness, and Openness (r = 0.69–0.79). Honesty‐Humility showed weak to modest associations attesting to the discriminative validity for this dimension. The Norwegian HEXACO‐200 had strong psychometric properties demonstrating its suitability for personality assessment in Norwegian populations.\n"]