This study examined the moderating impact of managerial ownership on intellectual capital and firm’s value of listed deposit money banks in Nigeria. Ex-post facto research design was adopted to define the structure and strategy of the study, while the target population was all the listed deposit money banks in Nigeria as at 31st December, 2022 which were 14 in number. Out of the 14 banks 11 were purposively chosen based on their complete annual reports and accounts over the period of the study (2012-2022). Panel regression analysis was adopted to analyze the collected data. Thus, the study found a direct positive impact of structural capital efficiency, and innovation capital efficiency on the value of the bank. However, human capital efficiency was found to have negative but significant impact on the value of the banks, while capital employed efficiency revealed positive but insignificant direct impact on the value of the selected banks. Furthermore, managerial ownership was found to have positive and significant moderating impact on structural capital efficiency, human capital efficiency and firms’ value, while managerial ownership revealed negative and insignificant moderating impact on innovation capital efficiency and the value of the banks. Therefore, the study concluded that managerial ownership have positive and significant moderating impact on intellectual capital and firms’ value of listed deposit money banks in Nigeria. This signifies that, increase in the number of equity share owns by managers and directors would improve banks investment in intellectual capital, hence enhance banks value. Therefore, this study recommends that; in order for listed deposit money banks in Nigeria to maximize firms’ value through intellectual capital efficiency, the banks should allow managers to acquire equity shares in the banks.