The principal holds a unique position as the person in charge of education in secondary schools. In this role, the principal interprets policies, implements instructional programmes, oversees staff development, and ensures the school's adequate and proper management. The study investigated the relationship between managerial roles of principal and teacher job performance in Ekiti state secondary schools. This study made use of descriptive research of the survey type to carry out its research. The participants in this study included all 9,538 public secondary school teachers in Ekiti State as well as all 205 principals working in the state's public secondary schools. A multistage sampling procedure was used to choose the participants for the study, and the resulting sample included 40 principals and 400 instructors. In this investigation, we made use of two different instruments. Both the Managerial Roles of Principal Questionnaire (MRPQ) and the Teacher Job Performance Questionnaire (TJPQ) were questionnaires that the author had designed on their own. Experts in Education Management and experts in Test and Measurement analysed the instruments to assess both the face validity and the content validity of the instruments. The data was collected and analysed descriptively and inferentially at 0.05 level of significance. The findings revealed that there is significant relationship between motivational role and teacher job performance (r-cal 0.672, p=0.0000), a significant relationship between communication role and teacher job performance (r-cal 0.519, p=0.000), and also there was a significant relationship between supervision role and teacher job performance (r-cal 0.611, p=0.000). In conclusion the managerial roles of principal like motivational role, communication role and supervision role have impact on teacher job performance. It was recommended among others that principals should implement incentive programs or recognition systems to acknowledge outstanding performance, encourage two-way communication by seeking input from teachers on decision-making processes and involving them in relevant discussions. Keywords: Managerial Roles, Motivation, Communication, Supervision, Teacher, Job Performance,