ST.Kagwa Bushenyi High school was started in 1968 by Mbarara Diocese and granted aided by government in 1976. under the headship of Rev. Fr. Bruno Loiselle (RIP) from Canada. It has developed over the years with the support of the parents and Uganda government. Government of Uganda has been paying salaries for some staff, appointing boards to manage the school, initiating policies etc. The parents have been paying school fees for the recurrent expenditure, capital development projects and assisting the administration through parents Teachers Association to plan, maintain high academic standards and discipline.