The purpose of this study was to determine the rule of organizational citizenship behavior (OCB) and innovative work behavior (IWB) in mediating the influence of organizational commitment and culture to employee performance with Bank Riau Kepri as the research object. Samples in this study were 105 employees of Bank Riau Kepri. Samples were taken using proportional stratified random sampling technique. Data collecting in this study was done using closed-questionnaires as research instrument. Data collected was analyzed using SmartPLS 3.0 program. The results of this study found that: (1) Organizational commitment variable had not influenced to employee performance, (2) Organizational culture variable had influenced to employee performance, (3) OCB fully mediated the influence of organizational commitment to employee performance, and (4) IWB partially mediated the influence of organizational culture to employee performance.