9.8526°N 76.6887°WSt. Augustine's Higher Secondary School, Karimkunnam in Idukki district, Kerala is a co-educational institution established in 1938 which is run by the Knanaya Catholic Archdiocese of Kottayam. The school is operated by the corporate educational agency of the archdiocese.
St. Augustine's became a higher secondary school in 1998. The school has 500 students with a staff establishment of 27, and its current local manager is Fr. Sabu Malithuruthel.