Abstract: IT governance in organizations plays strategic roles in deciding on whether IT strategies and investments is both private and public organizations could be efficient, consistent and transparent. IT governance is potential to be the best practice that could improve organizational performance and competency. In conjunction to that this study is carried out to determine the factors influencing the implementation of IT governance in public sector. The study involves qualitative and quantitative approaches where data were collected through questionnaire, observation, interview and document study through a sample of 367 respondents. The collected data were analyzed using Structured Equation Modeling (SEM) for validating the model and testing the hypotheses. Besides, semi-structured interview, observation and document study were also carried out to obtain the management’s feedback on the implementation of IT governance and its activities. The findings reveal that policy has a significant direct influence on system planning, the management of IT investment, system realization, operation and maintenance and organizational culture. Besides, monitoring and evaluation process also significantly affects the system planning, the management of IT investment, system realization, operation and maintenance and organizational culture.