Self-Monitoring (SM) is a concept that refers to individual differences in this orientation toward regulation of social behavior. The goal of the present research was to provide a Spanish adaptation of Snyder and Gangestad’s (1986) Revised SM Scale. After conducting an initial pilot study, results showed that the Spanish version of the scale had good internal reliability and adequate factor structure. In Study 1, analyses support a unidimensional structure of the scale (χ2/df = 2.64; GFI = .97; IFI = .97; TLI = .96; RMSEA = .06). In Study 2, the scale showed discriminant validity from other individual differences measures, such as Need for Cognition (r = 0.12 p = 0.14), Social Desirability (r = 0.06, p > .45) and Extraversion (r = 0.28 p = .001). In Study 3, the scale showed adequate test-retest reliability (r = 0.71, p < .001). Finally, using a paradigm of attitude-behavior consistenty, Study 4 showed that the validated scale also had good predictive validity (B = –0.819, p = .035).