St. Mary’s High School SSC is a private Catholic junior secondary school for boys located in Mazgaon, Mumbai, in the state of Maharashtra, India.

The Christian minority institution was founded by the Jesuits in 1864.

[2][3] The school covers kindergarten, and grades one through ten.

[4] St. Mary's High School lies across Nesbit Road from St. Anne's Church which was established in 1787.

St. Mary's High School was founded next to the church to serve military orphans, and then opened to the Catholic populace in general.