The recent conceptualization of psychopathy as a dimensional construct has given rise to the need for validated instruments for use in nonclinical populations. The Self-Report Psychopathy Scale (SRP-III) is a questionnaire widely used to evaluate psychopathic traits in clinical and nonclinical samples in the English-speaking population. Using a community sample, the authors aimed to adapt and validate, to the Spanish language, the SRP-III based on the English short-form version by Mahmut, Menictas, Stevenson, and Homewood (2011). The SRP-III was administered to 1,938 participants. Confirmatory factor analysis demonstrated that the four-factor model satisfactorily fits the data. Internal consistency and test–retest reliability were adequate for the total score and its four facets. The SRP-III also showed good construct validity as measured through its relationship with personality, depression, empathy, machiavellianism, and narcissism. These results suggest that the Spanish version of the 34-item SRP-III is an adequate measurement of psychopathic traits.