The "Auckland College and Grammar School Old Boys' Association" was founded in 1893 by Headmaster James William Tibbs. His objective was to cement the strong links that were being forged between the School and Auckland City and to foster the friendships and community spirit which developed during school years. The objectives of the Old Boys' Association remain much the same today.

The Auckland Grammar School Old Boys' Association is run by an Executive Committee comprising Old Boys' and a Staff Representative and an Executive Secretary, who is employed in a part time role. Details are as follows:

Patron
The Headmaster, Mr J Morris

President
Mr J S Whineray 

Honorary Life Members
Mr N J Atkins, Mr A H Avis, Mr J C Belcher, Mr J P Bissett, Sir Ron P Carter, Mr G N Cashmore, Mr J G Cox, Dr N T Evans, Mr R J Gale, Mr A E Hilton, Mr H G Kasper, Dr R D Kirkpatrick, Mr G E Jackson, Prof. A MacCormick, Mr L J McIlraith, Mr D S Milne, Mr W G Price, Mr KDT Shores, Mr D K Simcock, Mr J T Sparling,  Mr A M Storey, Sir Wilson J Whineray, Mr J C Wigglesworth, Mr D J Wilson.   

Secretary-Treasurer
Mr A T Williams 

Executive Committee
Immediate Past President, Mr R B Adams
Mr S J Barron, Mr W H Carnachan, Mr R J Chisholm, Mr D Dickinson, Mr D T Hewitt, Mr J Mace, Mr J Moses, Mr M Price, Mr W G Price, Mr C Riley

School Representative
Deputy Headmaster, Mr J M Blyth