This study aimed to ascertain how cultural factors influence counterproductive organizational behavior and how they affect organizational performance. Todays businesses are plagued by so many CWBs that it is challenging to maintain low overhead costs and maximum output. It has progressed to a point where it poses a persistent threat and threatens the foundations of numerous modern businesses worldwide. Businesses lose money each year due to employees actions that are detrimental to the companys goals. According to the hypotheses, the studys goal was to assess how gender discrimination, workplace bullying, and work-life imbalance affect the performance of employees in the Nigerian banking industry. The study utilized both descriptive and causal comparison techniques. Hence, Taro Yamanes formula produced a sample of 266 from a total population of 798 for the entire examination. However, of the 266 people who received the structured questionnaire, only 264 responded. Multiple regression testing was used to evaluate the hypotheses, and with a significance threshold of 0.05, the Cronbach alpha method produced an instrument reliability value of 0.821. According to the analysis, significant correlations were discovered between workplace bullying, work-life imbalance, gender discrimination, and organizational performance. It was also discovered that bullying is widespread because it is ingrained in the organizations culture. The study, therefore, recommends that managers prioritize putting various work-life balance incentives into place to improve employee performance. Managers are advised to make it a top priority to guarantee that all workers, regardless of gender, receive equal pay, opportunities for advancement, and other professional opportunities. Additionally, businesses should implement anti-bullying policies and counseling programs; bullied victims should be given therapy to help them recover from their ordeal, and management should prevent such occurrences.