St Aloysius Higher Secondary School (formerly St Aloysius English School) is a Catholic high school located in the District of Kollam in the Roman Catholic Diocese of Quilon. It was founded by the Congregation of Christian Brothers in 1896, with the main building completed in 1900. In 1932 it had 23 lay teachers and 479 pupils. This school is located near to Vaddy beach, Kollam around the corner from Vaddy Church. Nearly 4000 students study in this institution, which was upgraded to senior secondary school. The main subjects in Higher secondary section are science, computer science and commerce.