Dating violence represents an important health problem among adolescents and young adults, not only because of its high prevalence but also because of its negative consequences for individual and social development. Educational programs aimed at the prevention and reduction of aggression are indispensable; therefore, the aims of this study were to assess perception and attitudes toward dating violence, and to evaluate the effectiveness of an educational workshop among college students. A total of 212 students from a public university in Mexico City participated in the study. The participants were distributed into two groups: the intervention group (IG; which received a workshop on dating violence) and the control group (CG; which did not participate in the workshop). A self-reported questionnaire was applied to assess students’ perception and attitudes toward violence. Means and standard deviations were calculated. In both groups, the comparison between pre- and post-evaluation scores was carried out using the test for matched pairs. The MANOVA test was performed for repeated measurements. The participants of the workshop showed positive changes in perception and attitudes toward dating violence, p < .0001; these changes were not observed in the CG, p = .98. Women in the IG showed a higher improvement than men, p = .04. Findings highlight the importance of creating long-term health promotion programs to improve human relationships, particularly in such important areas as dating violence.