The purpose of this study was to investigate the principal’s leadership practices in Nono Woreda Primary Schools. The study attempted to find out factors affected principal’s leadership practices in Nono Woreda Primary Schools. The study used a descriptive survey design. The target population was 12 primary schools with a population of 32 teachers, 10 educational experts, 28 PTA, 12 principals, 4 vice-principals and 4 supervisors. The participants were selected using random sampling techniques. The data gathering tools were questionnaire, interview and document analysis. Questionnaire was employed to collect data from school leaders and teachers, Clusters supervisors, Woreda education head and experts. Interview was used to gather information from PTA. The quantitative data was coded and analyzed using descriptive statistics such as frequencies, percentages; means, standard deviation through the statistical package for social sciences (SPSS).While the information gathered through interview and open-ended questions were narrated qualitatively. The findings of the study indicate that much of principals’ time is allocated to administrative works which could show the tendency of principals to engage themselves on activities that are not directly related to teaching learning process, school leadership areas were not established with clear and annual wide goals, there were moderate teachers’ involvements in making educational decisions, but there were highly principals’ dominated in instructional decisions. In addition to this it was also found that principals’ initiative in consulting teachers about instructional matter, principals’ initiative for frequent classroom visit and principals’ constructive comments and suggestions in instructional matter was moderate. Based on the above major findings the following conclusions are drawn many instructional leaderships were inexperienced. The study concluded that the leaders did not perform effectively in each instructional leadership dimension. They were assigned the post without having educational planning and management skills. The study therefore recommends that education officer, experts, governmental and non-governmental organizations should involve actively giving relevant trainings, workshops and seminars in creating awareness and changing attitudes of lower stakeholders on the base of school objectives, plans and goals. The Oromia Regional Education Bureau with zone and Woreda education office need to revise the criteria used for selecting and appointing primary school principals and serious consideration should be given for field of study and Level of Education.