The purpose of the study was to investigate the contribution of ICT use in the effective management of public secondary schools, a case of Nyamagana District. Three objectives guided the study; to examine the availability and the use of ICT in the management of secondary schools, to find out the challenge facing the application of ICT in the effective management of public secondary schools (iii) To suggest possible measures to enhance the application of ICT in the management of secondary schools in Nyamagana District. A Descriptive survey research design was used to collect data from the selected population in which both quantitative and qualitative approaches were employed. A total of 100 respondents participated in the study. Questionnaires were used to collect data. The study found out that, few schools use ICT to ensure the effective management, moreover the study revealed that there is low understanding on the use of ICT facilities; furthermore the study revealed that there is lack of enough computers to facilitate effective management of public secondary schools in Nyamagana District. From the findings, the study concluded that teachers should get training on the use of ICT facilities. The study recommends that stakeholders and government should provide ICT facilities such as computers, printers and photocopies so as to make management of public secondary schools effective in Nyamagana District.