This study examined the influence of job security, regular payment of salaries and supervisors approach on teachers job performance in the Private Schools in Ibadan, Oyo State, Nigeria. The descriptive-correlational research design was adopted, one hundred and seventy-five (175) samples were selected from schools in Egbeda and Oluyole LGAs within Ibadan, Oyo state, with a self-structured questionnaire as the major instrument for the study. Hence, the results revealed that job security (F = 10.601), prompt payment of salaries (R = 0.286) and supervisors’ approach ( x = 3.29). These results established the independents variables had significant impacts and relationship on the dependent variable. Based on the findings, the study recommended that the salaries and other financial entitlements of workers should be given optimum attention by management of private schools in Oyo State and Nigeria in general for teachers’ expected performance to be attained. Fringe benefits of the teachers should also be given attention because teachers tend to give their best and show higher and greater sense of belonging and commitment when conditions of service are favourable. Similarly, supervisors of schools should apply humane approaches
when supervising teachers so as to achieve efficient job performance of the teachers.