St. Augustine's Day School was established in Kolkata, India, in 1971. The principal is C.R Gasper and the Head Master D. Gomes. It has four branches:
The school has good results in both ICSE and ISC. In 2008 the school had 16 ICSE students who scored above 90%. The highest percentage was 97.4%, the second highest in West Bengal. In ISC, 6 students scored above 90% with the highest being 95%.In 2009 ICSE 22 students got 90% with the highest being 96.2% and 4 students got 90% in ISC with the highest being 93%.