| Regional, Interstate or Year Group Reunion |
Date |
Venue |
| Southern Highlands |
20 March |
Hopewood House, Bowral - Convener Nick Foord |
| School Anniversary Chapel Service |
5 May |
Shore Chapel |
| Sunshine Coast |
15 May |
Maroochy River Golf Club - Convener Stephen Marshall |
| Brisbane |
16 May |
The United Services Club, Brisbane - Convener Tony Ritchie |
| Annual OBU AGM |
27 May |
Colebrook Room, Shore Senior Campus |
| ACT and Southern Region |
6 June |
Royal Canberra Golf Club, Yarralumla - Conveners Paul Cooke and High Cooke |
| Riverina |
23 June |
The Riverine Club, Wagga Wagga - Conveners David Stratton and Bruce Allworth |
| Mitre Club Winter Lunch |
5 July |
The Emery Room, Northbridge - Conveners Andy Cavill, Warren Nutt and Richard Ferguson |
| Tamworth |
26 July |
Monty's at The Powerhouse Hotel, Tamworth - Convener Angus Warden and Ian MacDermott |
| Old Boys' Day @ Northbridge |
10 August |
Northbridge War Memorial Fields |
| 1979 - 45 Year Reunion |
10 August |
Royal Sydney Yacht Squadron, Kirribilli - Convener Mike Raleigh |
| 1984 - 40 Year Reunion |
10 August |
The Oaks - Conveners Simon Ascoft and Stephen Shirley |
| 1994 - 30 Year Reunion |
9 & 10 August |
TBC - Convener Hugh Watson |
| 2004 - 20 Year Reunion |
10 August |
The Northbridge Hotel - Conveners Chris Gillings and Nick Bradley |
| 2009 - 15 Year Reunion |
10 August |
400 Bar and Kitchen, Greenwood Plaza rooftop, North Sydney - Conveners Jonathan Cowper, Alistair Shields and Tom Woods |
| 1959 - 65 Year Reunion |
4 September |
The Emery Room, Northbridge War Memorial Fields - Conveners Doug Munro, Pete Stevens |
| 1954 - 70 Year Reunion Lunch |
23 September - TBC |
TBC - Convener Gordon Hartley |
| 1974 - 50 Year Reunion Dinner |
27 September |
The Hawkins Foyer, Shore Senior Campus - Convener Rowan Johnston |
| 1964 - 60 Year Reunion Lunch |
4 October |
The Hawkins Foyer, Shore Senior Campus - Convener Bill Wright |
| 2024 GPS Gold Challenge for 1990 & 1991 leavers |
11 & 12 October |
11th - Oatlands Golf Course, Shooting at The Kings School and Rowing at the Leichhardt Rowing Club
12th - main events at Newington College |
| 1957 - 67 Year Reunion Lunch |
11 October |
The Emery Room, Northbridge War Memorial Fields - Conveners Warren Nutt and Dick Gulley
|
| Central West District Golf Day & Reunion Dinner |
18 October |
Orange venue TBC - Convener Richard Hattersley |
| 1969 - 55 year Reunion Lunch |
25 October |
The Barracks - Convener Richard Church |
| 2014 - 10 Year Reunion |
TBC |
TBC - Convener Tom St John |