Adult fans of K-Pop band BTS are part of a diverse and global fandom that has an evident psychological sense of community associated with psychosocial benefits such as increases in wellbeing. This study aimed to investigate if cyberbullying victimization plays an influential role in the relationship of BTS fans' psychological sense of community and wellbeing using an online co-designed survey administered to 183 participants. There was a significant positive relationship found between psychological sense of community and wellbeing. The results of a moderation analysis were interpreted as cyberbullying victimization not having an influential role in this positive relationship, despite cyberbullying typically having detrimental effects on interpersonal relationships and communities generally. It was concluded that BTS fans' psychological sense of community may be buffering against the adverse consequences of cyberbullying victimization and/or competent anti-cyberbullying and online safety practices are being carried out in online BTS fan communities. Implications for anti-cyberbullying researchers and cyberbullying prevention efforts are also discussed.