The study examined the Principal’s Administrative Roles and Teachers’ Job Effectiveness in Public Secondary Schools in Akwa Ibom State. The lapses created by poor Principal’s Administrative Roles in managing public secondary schools in Akwa Ibom State in terms of instructional supervision, planning, motivation and evaluation influence absenteeism, unwillingness to plan lesson notes, laziness towards teaching and other forms of indiscipline which constitute a great threat to effective job performance by teachers. This study aims to improve on these lapses for effective teaching and student academic performance. The study used Quantitative Research Design, using the Correlation Survey Method. Four objectives with corresponding four research questions as well as four hypotheses were used to guide the study. The sample of 320 was selected from a population of 6,978, A simple random sampling procedure was used in selecting a sample of the study. A self-design questionnaire titled “Principal’s Administrative Role and Teacher Job Effectiveness” was used for data collection. The study was able to find the relationship between the principal’s role in instructional supervision, the principal’s role in planning, the role of motivation and the role in evaluation. It was recommended that principals in Akwa Ibom State should choose the right kind of supervisory practices which can contribute to better teaching performance. School development plans and advancement of principal leadership should be included in their preparatory programmes, training and professional development