The OSU aims to encourage and facilitate ongoing interaction between the Alumni Office of Sydney Grammar School and to also assist the School. In conjunction with the School we support year group reunions to meet at least every five years.
OSU Events – A reminder that our calendar is regularly updated with events and reunions – easy to search for your reunion just open the calendar link above.
OSU Annual Golf Day
The OSU Annual Golf Day will be held on Wednesday 25 October at the Coast Golf Club, Little Bay. Trybooking link.

Letter from the President – No doubt by now many of you have become aware, in varying degrees, of Chanel Contos and the issues of sexual assault and other toxic behaviour of students at many independent schools. Attached is a letter from the President of the OSU to all Old Sydneians expressing concern and support for actions. Including the following “…we [the alumni heads] have agreed to build on the momentum created by Chanel to share ideas and develop actions that can be taken by alumni associations both in conjunction with our respective schools, our members, parents and with parents’ associations.” Please read the attached letter.
Membership – All Old Sydneians are automatically members of the OSU. However, we do ask new leavers to register and become financial members for a one-time payment of $275 to provide funds to support the efforts of the OSU and our support for the School. You can become a financial member via the following link – OSU Financial Membership
Creating your account also enables the OSU to keep you informed of our activities. Register Now
Merchandise – You can never be missed with the OSU Alligator tie or the more traditional OSU tie – order your tie now by clicking on either of these links