List of alumni of Barker College

This is a list of notable alumni of Barker College, they being notable former students or alumni of the Anglican Church school, Barker College in Hornsby, New South Wales, Australia. The alumni may elect to join the school's alumni association, the Old Barker Association (OBA), which was formed in 1908 and originally known as the 'Barker College Old Boys Union'. The OBA provides a link between Barker College and its past students, with over 16,500 members.

• David Astle – cryptic crossword compiler for Sydney Morning Herald and The Age newspapers: "DA"
• Anna Bamford – actor, Wonderland
• Andrew Bevis – London West End actor
• John Blackwood, 11th Baron Dufferin and Claneboye – Australian architect
• Mike Carlton – retired radio presenter
• Simon Fieldhouse – artist
• Jarod Green – founder, The Handsomity Institute and director/creator of the TV series Beached Az
• Takaya Honda – actor, Neighbours and The Family Law
• Hugo Johnstone-Burt – actor, San Andreas
• Chris Lilley – comedian and actor, Summer Heights High
• Nick Littlemore – producer and musician, as a member of Pnau and Empire of the Sun
• Sam Littlemore – producer and musician, as a member of Pnau and also known as Sam La More and Tonite Only
• Simon Marnie – ABC radio presenter
• Peter Mayes – producer and musician, as a member of Pnau and main producer of Empire of the Sun
• Penny McNamee – actor, Home and Away
• Phillip Noyce – film director
• Rosie Waterland – bestselling author and television writer, The Anti Cool Girl, Every Lie I've Ever Told
• James West – journalist, executive producer of Hack on Triple J
• Brian Wilshire (1957–1961) – retired radio presenter

• John Blaxland – historian and academic at The Australian National University
• Mitch Fifield – Senator for Victoria (2004–2019), representing the Liberals
• Peter Garrett  – Midnight Oil lead singer; environmentalist; former Member for Kingsford-Smith, representing Labor, former federal Minister for School Education, Early Childhood and Youth
• Rob Oakeshott – former independent Member for Lyne and Member for Clarence, formerly representing the Nationals
• Philip Ruddock  – former Member for Parramatta (1973–1977), former Member for Dundas (1977–1993), former Member for Berowra (1993–2016), former Minister for Immigration, Multicultural and Indigenous Affairs (1996–2003) and former Attorney-General (2003–2007), and Mayor of Hornsby Shire Council since 2017, representing the Liberals
• Bo Seo – author, journalist and world champion debater
• Robert Solomon – former Member for Denison, representing the Liberals, and 1955 NSW Rhodes Scholar

• James Angus – biomedical researcher
• Douglas Armati – writer, researcher and consultant with management expertise in the protection of digital intellectual property
• Craig Barratt – technology executive
• Chris Heyde – statistician, fellow of the Australian Academy of Science
• Andrew Tridgell – creator of and contributor to the Samba software file server for linking Windows clients and Unix file server systems, and co-inventor of the rsync algorithm
• Jeff Waugh – software developer

• Alex Blackwell – Australian and NSW women's cricketer
• Kate Blackwell – Australian and NSW women's cricketer
• Jamie Brazier – Papua New Guinean cricketer
• Brendon Cook – international race car driver
• Ben Darwin – former Wallaby
• Sue Fear  – mountaineer, first Australian woman to climb Mount Everest, died in 2006 while climbing
• Sam Figg – former professional rugby player for the Australian 7s team and the Glendale Raptors
• Richard Harry – former Wallaby
• Alyssa Healy – Australian and NSW woman's cricketer
• Isaiya Katoa – NRL Rugby League player
• Timothy Myers – Australia freestyle and big mountain skier
• Nigel Nutt – Australian Commonwealth fencer
• Mitchell Pearce – former NRL and NSW State of Origin halfback
• Billy Pollard – professional rugby union player for the ACT Brumbies
• Hugh Pyle – Melbourne Rebels lock
• Luke Reimer – professional rugby union player for the ACT Brumbies
• Amy Sayer — football player and member of the Matildas
• Cameron Shepherd — former NSW Waratahs, Western Force and Wallaby fullback
• Lisa Sthalekar — Australian and NSW women's cricketer
• Peter Taylor — former Australian Test and limited-overs cricketer
• Ben Whittaker — footballer and coach
• Jarrod Witts — Australian rules footballer
• Jeff Reid — former Canada Rugby International

• Combined Associated Schools

• Barker College