Despite the forensic relevance of psychopathy and the overrepresentation of Hispanics in the United States’ criminal justice system, these two issues remain underexplored, particularly with self-report measures of psychopathy. We investigated the criterion validity of three psychopathy measures among African Americans, Caucasians, and Hispanics in a sample of 1,742 offenders. More similarity than dissimilarity emerged across groups. The factor structures of psychopathy measures among Hispanic offenders were consistent with previous findings. Few significant differences emerged between Hispanic and Caucasian offenders, with most differences emerging between African Americans and the other ethnic groups. In such instances, the correlates of psychopathy were typically weaker for African Americans. The Psychopathy Checklist–Revised yielded fewer psychopathy x ethnicity interactions than the Psychopathic Personality Inventory and Levenson Primary and Secondary Psychopathy Scales. Overall, these psychopathy measures showed reasonable validity across these cultural groups.