The Old Boy's Union runs multiple regional and interstate reunions each year and facilitates with year group reunions.

Regional, Interstate or Year Group Reunion Date  Venue
Southern Highlands  20 March Hopewood House, Bowral
Sunshine Coast 15 May TBC - Convener Stephen Marshall
Brisbane 16 May The United Services Club, Brisbane - Convener Tony Ritchie
ACT and Southern Region 6 June TBC - Conveners Paul Cooke and High Cooke
Riverina TBC TBC
Mitre Club Winter Lunch 5 July The Emery Room, Northbridge - Conveners Andy Cavill, Warren Nutt and Richard Ferguson
Tamworth TBC TBC
Old Boys' Day @ Northbridge 10  August Northbridge Memorial Fields
1979 - 45 Year Reunion 10 August Royal Sydney Yacht Squadron, Kirribilli - Convener Mike Raleigh
1984 - 40 Year Reunion  10 August TBC - Conveners Simon Ascoft and Stephen Shirley 
1969 - 55 Year Reunion Lunch 24 September The Barracks - Convener Richard Church
1974 - 50 Year Reunion Dinner 27 September  The Hawkins Foyer, shore Senior Campus - Convener Rowan Johnston