or nicknamed Antonians) is a semi-private Government, Boys, day school located at Dadar in Mumbai, India.

[2][3] The institution was established in 1851 by Dr Antonio Da Silva and Reverend John Braz Fernandees under the name St. Johna high school.

The Institution was founded in 1851 at Dadar in Bombay, British India by Dr. Antonio Da Silva and John Braz Fernandees under the name St. Johna high school.

The Junior College of both the Commerce and Technical schools, started in 1975, offering Science (Biology) and Vocational streams.

[10] During that time the Institution was recognised and aided by the Directors of Vocational Education and Training (Maharashtra State).

The vast majority of alumni are Indians, but a dwindling number of Englishmen from before the 1948 Batches studied there.

Sports activities at the high school include football, cricket, basketball, swimming, throwball and roller skating.

[16] The school has a long tradition of winning major matches and tournaments in football, cricket, volleyball, handball, badminton and several other sports.

Some 27 clubs and societies exist, covering politics, drama, photography, aeromodeling, first-aid, dramatics, painting, sculpture, carpentry, amateur radio, music, senior and junior English debating societies, Model United Nations, chess and astronomy.

In many societies pupils come together to discuss a particular topic or subject, presided over by a schoolmaster and often including a guest speaker.

The facility is equipped with state-of-the-art stagecraft and engineering systems and has been the setting for numerous Shakespeare and other classic productions of western theatre, as well as musical performances and speeches during school ceremonies such as Founder's Day.

The Inter House Once-Act Play competition is held each year, alternatively in English and Hindi.

The Junior College of Commerce at Dr Antonio da Silva High School and Jr. College of Science at Dr Antonio da Silva Technical High School, started in 1975, offers Science (Biology) and Vocational streams.

The Dr. Antonio da Silva High School and Junior College of Commerce is a member of the Rotary International's Interact Club, International Boys' Schools Coalition (IBSC), Rashtriya Life Saving Society (India).

On 14 March 2013, the police and trustees of the Dr Antonio Da Silva High School were investigating allegations that a six-year-old Class I student was handcuffed with a cycle-lock chain, paraded before students of various classrooms and made to clean a toilet room.

The father of the boy lodged a complaint with Shivaji Park police station against a teacher and the headmistress.

The teacher allegedly handcuffed and paraded the boy, while the headmistress took no action following the parent's complaint.

That month the matter was pending at the Maharashtra State Commission for Protection of Child Rights (MSCPCR).