The main purpose of our study is to do Corporate Governance Characteristics Affect the Level of Sustainability Reporting in Saudi Arabian Banks? A descriptive research design was employed targeting 12 banks. Secondary data were collected from the banks’ annual reports. Time series data comprising three years (2015 to 2017) were used. The study established that the relationship between corporate governance characteristics (board size, independent directors, CSR committee) and sustainability reporting was increasing with time. Regarding control variables firm size and firm age did not have a significant controlling effect on sustainability reporting. The results of our study will be useful for bank managers, government officials, practitioners, and policymakers to provide the opportunity to Saudi banks to expand the globally market liberalization. Our study also contributes to the existing literature, which investigates how Corporate Governance Characteristics Affect the Level of Sustainability Reporting in Saudi Arabian Banks.