Welcome to the Old Sydneians’ Union
Our purpose is to maintain and strengthen friendships between Old Sydneians, bring together our community, and support one another after leaving College Street.
What’s On?
The Union hosts a range of activities including regular reunions, lunches, networking events and informal activities locally and internationally. These are an opportunity to catch up with old friends and bond over shared experiences at College Street and beyond.
Founded in 1893 with a community of over 9,000 members globally, the OSU maintains its historic vision of keeping OS connected, building networks, and fostering lifelong friendships.
Image Courtesy of Sydney Grammar School Archives