Research shows that abuse in adolescence can start early and current literature regarding gender differences in teen relationship violence (TRV) is inconsistent. Age and gender differences in TRV were examined. Measures assessing TRV and its correlates were completed by 231 teens from 7th-, 9th-, and 11th-grade classes. A 2 (gender) by 3 (grade) multivariate analysis of variance revealed significant effects for grade and gender indicating that 7th graders have lower perpetration and victimization of TRV, less anger control, and fewer positive conflict resolution behaviors than 9th and 11th graders. Furthermore, girls perpetrate more physical and emotional abuse, whereas boys perpetrate more sexual abuse. Results have implications for timing and content of prevention programs addressing dating violence in adolescence.