Introduction: Bullying victimization is detrimental to psychosocial wellbeing in adolescents. It is paramount that factors that mitigate the harmful effects of bullying victimization be identiied. Time perspective may be a potential mechanism. Thus, we examined the moderating effect of time perspective on the associations between traditional and cyberbullying victimization (being bullied in person and on electronic media) and self-esteem in adolescents. Time perspective refers to feelings and thoughts about the past, present, and future. We examined time feelings (positive and negative feelings about the time periods), time frequency (frequency of thoughts about the time periods), and time relation (the perceived relationship among the time periods). Methods: Two cross-sectional survey studies were conducted. Study 1 examined traditional bullying victimization in 721 American adolescents (M age = 15.84, SD = 1.20; 57% female). Study 2 examined cyberbullying victimization in 190 American adolescents (M age = 15.83, SD = 1.28; 59% female). Results: Hierarchical linear regression analyses indicated that time perspective dimensions moderated the associations between high levels of traditional and cyberbullying victimization and self-esteem in adolescents who (a) had strong positive and weak negative feelings about the present and future (time feelings); (b) thought a little about the past (time frequency); or (c) perceived all time periods as interrelated (time relation). Conclusions: Time perspective dimensions (feelings, frequency, and relation) moderated the associations between traditional and cyberbullying victimization and self-esteem in adolescents. Findings have implications for bullying victimization prevention efforts. Findings also demonstrate the multidimensional and multi-temporal qualities of time perspective.Bullying is a public health issue of national importance (Megan, 2019). One in ive adolescents are bullied in person, and nearly one in six are bullied on electronic media such as the internet and cellphones (Centers for Disease Control and Prevention, 2018). Bullying victimization includes the traditional (in-person) and cyber (electronic) forms. Adolescents who experience either traditional or cyberbullying victimization are vulnerable to psychosocial adjustment and psychological health issues (Forero et al., 1999;Garnefski & Kraaij, 2014;S ¸ahin, 2012). In particular, low self-esteem has been observed in adolescents who experienced bullying victimization (Cénat et al., 2014;Rigby & Slee, 1993).☆ This article is based on a master's thesis completed by Moon (2020).