This study examinedComparative Analysis of Boarding and Day Students‟ Performance in West African Examinations Council in Birnin Gwari Education Zone Kaduna state, Nigeria (2011-2015): Implications for educational management. It comparatively ascertained the relationship in the performance of Boarding and Day Senior Secondary Schools in Birnin Gwari Education Zone. As a descriptive research, the study population comprised all the seven (7) Day Senior Secondary Schools and One (1) Boarding Senior Secondary Schools in BirninGwari zone, Kaduna State. The researcher, therefore, used WAEC grading of candidates, who scored A1-C6, D7, E8,and F9 in Senior Secondary School, Boarding and Day Schools which have presented candidates for West African Examinations Council in the last five years. The instrument used to collect data for the study was an inventory titled Secondary Schools Academic Performance Inventory (SSAPI). The data collected were analyzed using simple percentages with frequency distribution tables showing the extent of the degree to measure students‟ performance and mean scores to estimate the relationships between the variables of the study. Six objectives and six research questions were askedand formulated to guide the study. It was found that the performance of students in the Day Senior Secondary Schools in West African Examinations Council (WAEC) with particular reference to English Language, Mathematics, Sciences Subjects, and Vocational and Technical subjects for the years 2011 to 2015 in BirninGwari zone of Kaduna state was low. The study revealed that there was a significant difference between a student being a Boarder and a Day student. The implication of running Day system of education in Birnin Gwari Zone, however, is that most of Day Studentsmight not be qualified for admission into higher institutions in the country. In the same vein, the implication of running boarding system of education in Nigeria, is creating a healthy teaching/learning climate which is conducive for a better learning outcome. Furthermore, procurement and disbursement of instructional materials, provision of adequate and modern equipment and library facilities coupled with enough co-curricular activities be assured. It was recommended that the State Ministry of Education should provide more infrastructural facilities to decongest large classrooms, provide more regular inspection to Schools. To maintain quality in the sector, Parents are urged to be part and parcel of the school system by lending a helping hand to School authorities in particular and government at large.