Abstract: The study investigated the contributions of teacher personnel management (teacher motivation and teacher development) to teacher productivity in Oyo metropolis senior secondary schools. One main hypothesis and two operational hypotheses guided the study. The study adopted a correlational survey research design. A total of 183 participants from Oyo metropolis 12 senior secondary schools were sampled using stratified random sampling technique. Data were collected through a validated and well structured instrument, Teacher Personnel Management Scale (TPMS; reliability index r’ = 0.89). Data were analyzed using Multiple Regression Analysis statistics. Results show that the two determinant variables significantly predict teacher productivity (teacher motivation = 0.19, teacher development = 0.11). Based on the findings, the study recommended that teachers must be well motivated in terms of payments, status and recognition so that they can show more commitment to their job. Also teachers need to acquire more knowledge through inservice training such as seminars, conferences and regular workshop in order to improve their competencies.