Ravenswood was established with eight students on 28 January 1901 by the first Headmistress, Mabel Fidler, as a non-sectarian private day school for girls, with preparatory classes for boys.

The first classes took place in a schoolroom erected on the block adjacent to Fidler's home, "Ravenswood", in Henry Street, Gordon.

[17] At this time, Ravenswood was the largest non-residential, private secondary school in Sydney, with an enrolment of 180, and was highly regarded for the quality of its teaching and its achievements in sport.

[20] The school grounds feature quadrangles and courtyards, a multi-purpose complex with heated swimming pool, gymnasium, a "Strength and Conditioning centre" and an Athletics Field.

[7] Ravenswood has a tradition of debating,[citation needed] and students are offered opportunities to participate at competitive or social levels.

These competitions are usually held on Saturday mornings and include sports such as: Softball, Tennis, Netball, Cricket, Hockey, and Soccer.

These competitions occur on Saturday mornings or in the form of carnivals and include sports such as: Softball, Swimming, Diving, Cricket, Tennis, Hockey, Soccer and Gymnastics.

Students who perform well at IPSHA or IGSSA level may be invited to compete in NSW Combined Independent Schools' (CIS) competitions.