Personality differences between Asian American (N = 320) and European American men (N = 242) and also among Asian American ethnic groups (Korean, Chinese, Japanese, Filipino, and mixed Asian) were examined on the Big Five personality dimension. Personality structures for Asian Americans and European Americans closely replicated established norms. However, congruence was greater for European Americans and highly acculturated Asian Americans than for low acculturated Asian Americans. Similar patterns were found for the construct loss of face (LOF). Asian Americans with a high concern for LOF were less similar in their personality structure to European Americans than Asian Americans with low LOF concern. Mean differences were also found for Asian Americans and European Americans, who differed significantly on Extraversion, Conscientiousness, Openness, and Neuroticism. Results indicate that acculturation and LOF were significantly associated with these four personality dimensions for both Asian Americans and European Americans.