This is a list of Old Trinitarians , they being notable alumni – known as "Old Trinitarians" of the Anglican Church school, Trinity Grammar School, Sydney in Summer Hill , New South Wales , Australia .
Luke Adams – race walker , Commonwealth Games 2002 and 2006 silver medalist[ 16]
Nathan Antunes – former Australian A1 Grand Prix rookie driver; international race car driver
Fotunuupule Auelua – former ACT Brumbies Super Rugby player; played for French Clubs US Dax and RC Toulonnais in the European Top 14 Competition, and the NTT Communications Shining Arcs in Japan's Top League competition
Steven Barnett – diver, Athens Olympics 2004 bronze medalist[ 16]
Ryan Briscoe – Indycar [ 16]
Rohan Browning – sprinter , 2018 Commonwealth Games , 2020 Summer Olympics and 2024 Summer Olympics athlete[ 17] [ 18]
Caiden Cleary – Sydney Swans footballer [ 19]
Adam D'Apuzzo – former midfielder for Newcastle Jets , A-League [ 20]
David D'Apuzzo – former midfielder for Central Coast Mariners , A-League
Jack Debreczeni – current fly-half for ACT Brumbies and former player for Melbourne Rebels & Chiefs (rugby union) Super Rugby Teams
Tane Edmed – current Wallabies and NSW Waratahs Fly Half
Sam Fricker – diver, competed in Olympic Games 2020 and Commonwealth Games 2022 bronze medalist
Oliver Hoare – middle distance athlete, Commonwealth Games 2022 gold medalist in 1500m, Olympic Games 2020 and Olympic Games 2024 athlete
Lachlan Ilias – St George Illawarra Dragons NRL halfback and former South Sydney Rabbitohs player.
Lars Kleppich – 2000 Summer Olympics sailor [ 21]
Tom Lambert – current NSW Waratahs prop and former Glasgow Warriors player
James Leckie – Commonwealth games and Super Rugby rugby union referee; international rugby union touch judge [ 16]
Joel Milburn – 400m sprinter, competed in the 2012 Olympics; 5th fastest Australian all time[ 16] [ 22]
Cameron Orr – current Seattle Seawolves prop in Major League Rugby and former Super Rugby Melbourne Rebels ,Western Force and Gloucester Rugby player in the Aviva Premiership
Prashanth Sellathurai – gymnast, national pommel horse champion since 2006; former world No.3 for pommel horse; commonly referred to as "Prince of the Pommel"; dual gold medalist and bronze medalist at the 2010 Commonwealth Games , silver medalist at the 2006 Commonwealth Games [ 16]
Liam Scott – current South Australia cricket team and Adelaide Strikers all-rounder
Rory Sidey – former Melbourne Rebels , NSW Waratahs and Western Force Super Rugby union player[ 16]
Glenn Singleman – base jumper ; world record holder of the highest base jump in history[ 16]
Scott Sio – former Wallabies , ACT Brumbies and former NSW Waratahs Super Rugby Union Prop ;[ 16]
Kenneth To – swimmer, Commonwealth Games 2008 bronze medalist and Youth Olympics 2009 gold medalist, 2010 Singapore Youth Olympics medalist, 2010 Dubai FINA World Championships (25m) finalist and 2012 FINA Swimming World Cup Champion[ 16]
^ Suzannah Pearce, ed. (2007). "GORDON Andrew Bruce". Who's Who in Australia Live! . North Melbourne, Vic: Crown Content Pty Ltd.
^ "Dave Warren – Biography" . Defence Science and Technology Organisation . Australian Government Department of Defence. 6 June 2006. Archived from the original on 29 August 2007.
^ Suzannah Pearce, ed. (2007). "WARREN David Ronald". Who's Who in Australia Live! . North Melbourne, Vic: Crown Content Pty Ltd.
^ "Delivering Health To The Homeless" . Trinity Grammar School. 15 November 2021. Retrieved 28 November 2023 .
^ "He quit uni to make a video game; now he's a Young Rich Lister" . Australian Financial Review . 24 October 2022. Retrieved 12 December 2023 .
^ "Rich Lister returns to his rock'n'roll roots with $180m US deal" . Australian Financial Review . 3 December 2023. Retrieved 12 December 2023 .
^ developer (31 August 2021). "Peter Freedman - where are they now?" . Trinity Grammar School . Retrieved 12 December 2023 .
^ "Index lands $3.5m seed round from Blackbird and Bain" . Forbes Australia . 12 February 2025. Retrieved 2 March 2025 .
^ "Simon Kubica (2014, Kerrigan) published in Forbes for capital raise (Index)" . Trinity Grammar School Alumni News . 14 February 2025. Retrieved 2 March 2025 .
^ "Papers of John Antill (1904–1986)" . Finding Aids: Manuscripts . National Library of Australia. 11 August 2004. Retrieved 23 September 2007 .
^ "Catalano, Gary" . Agent Details . AustLit. 2003. Retrieved 17 February 2008 .
^ a b Green, Jonathan (30 March 2005). "Famous alumni on Latham's hit list" . Politics . Crikey. Archived from the original on 26 September 2007. Retrieved 6 August 2007 .
^ Negus, George (27 September 2004). "Peter Wherrett" . George Negus Tonight . ABC Television.
^ Suzannah Pearce, ed. (2007). "HURFORD Richard, Rt Rev.". Who's Who in Australia Live! . North Melbourne, Vic: Crown Content Pty Ltd.
^ Suzannah Pearce, ed. (2007). "SHORT Kenneth Herbert, Rt Rev.". Who's Who in Australia Live! . North Melbourne, Vic: Crown Content Pty Ltd.
^ a b c d e f g h i j Trinity Grammar Alumni: News Archived 11 August 2007 at the Wayback Machine (25 April 2006)
^ "Rohan Browning Athlete Profile" . Retrieved 4 May 2018 .
^ Gleeson, Michael (16 July 2021). "The accidental runner who's Australia's fastest sprinter" . Sydney Morning Herald . Nine Entertainment Co. Retrieved 1 August 2021 .
^ "Caiden joins Sydney Swans in the AFL big time" . Retrieved 20 June 2024 .
^ Trinity Grammar Alumni: Australian Representatives Archived 29 August 2007 at the Wayback Machine (26 April 2006)
^ "Lars Kleppich" . Sydney 2000 . ABC News Online. 2000. Retrieved 23 September 2007 .
^ "London 2012 – Joel Milburn Athlete Profile" . Retrieved 4 August 2012 .