The Rostrevor Old Collegians' Association (ROCA) is an incorporated organisation representing the former students of Rostrevor College. The Association comprises of over 2000 Life Members.

ROCA exists to provide fellowship to former students and to support Rostrevor, especially in the provision of scholarships which are offered to the sons or grandsons of Old Collegians'.

ROCA through Rostrevor's Development Office conducts a full schedule of social events. Each year, a number of class reunions are held, plus Annual Dinners in Melbourne, Sydney, Adelaide and various country areas.

The Red and Black Magazine is the primary medium of communications with Old Boys. This magazine is published 2 times each year and includes coming events and special profiles on Old Boys.

Life Membership of the Rostrevor Old Collegians' Association is offered at $350. Membership forms can be downloaded here.