This is a list of notable past students and staff of Brighton Grammar School. Alumni of the school are known as "Brighton Grammarians".

• William Adamson – grain merchant, Brighton City councillor (1897–1913), Brighton City Mayor (1901–1902), Member of the Victorian Legislative Council (1910–1922)
• Dylan Alcott – Paralympian^[1]
• Francis Henry Joseph Archer – headmaster at Caulfield Grammar School 1923–1954, teacher at Brighton Grammar School 1955–1957^[2]
• Sir Stanley Argyle KBE – former Premier of Victoria; Member (Nationalist) for the seat of Toorak^[1][3]

• Gerry Balme – VFL footballer with St Kilda
• Brigadier Lewis Ernest Stephen Barker, CBE, DSO, MC – Australian Army officer
• Andrew Bassat – co-founder of SEEK^[1]
• Paul Bassat – co-founder of SEEK^[1]
• Marcus Bastiaan – businessman; former vice-president of the Victorian Division of the Liberal Party
• Weston Bate – member of staff
• Robin Batterham AO – chemical engineer; Chief Scientist of Australia 1999–2006^[1]
• Mordy Bromberg – Federal Court judge, and VFL footballer with St Kilda^[1]
• Travis Brooks – Olympic hockey player^[1]
• Louis Butler – AFL footballer

• Ben Canham – Australian representative rower
• Bill Cannon – VFL footballer with St Kilda
• Warwick Capper – AFL footballer
• Sir Norman John Carson – businessman, wool industry leader, philanthropist^[4]
• James Catanach – RAAF pilot, taken prisoner during the Second World War, took part in the 'Great Escape' from Stalag Luft III in March 1944, was re-captured and subsequently shot by the Gestapo
• Air Vice Marshal Hugh Vivian Champion de Crespigny, CB, MC, DFC – Royal Flying Corps pilot in First World War, and senior Royal Air Force officer during Second World War
• Sir Harold Winthrop Clapp KBE – railway administrator, Director-General of Australia's Land Transport Board, 1942–1951
• Josh Clayton – AFL footballer
• Andrew Cooper – Olympic rower^[1]
• George Henry Crowther – founder, and first headmaster of Brighton Grammar School^[5]
• Henry Arnold Crowther – second headmaster of Brighton Grammar School^[6]

• Roger Davies – artist manager, business manager, and music producer^[1]
• Chris Dawes – AFL footballer^[1]
• Lt. Col Sir Constantine Trent Champion de Crespigny – soldier, medical practitioner, pathologist, academic, and hospital administrator^[7]
• John Leopold Denman – member of dynasty of architects
• Neil Douglas MBE – environmental artist; conservationist; author^[8]
• Barry Robert Dove – Judge of the County Court of Victoria^[9]
• John Robertson Duigan and Reginald Duigan – Australian pioneer aviators who built and flew the first Australian-made aircraft^[1][10][11]

• Horace Percy Finnis – Anglican priest and organist

• William Grant CMG, DSO and Bar, VD – soldier and commander of the 4th Light Horse Brigade at the Battle of Beersheba^[1]

• William Hancock – vicar at St Andrew's Church, Brighton (1918–1928), instrumental in acquiring Brighton Grammar School for the Anglican Church in 1924, and chairman of the School's council (1925–1935)
• The Honourable Justice Kim Hargrave – Justice of the Supreme Court of Victoria Court of Appeal^[1]
• Ray Harper – VFL footballer with St Kilda, Carlton, and North Melbourne
• Clifford Hayes – Member of the Victorian Legislative Council
• Sir Lionel Hooke – pioneer in radio; wireless operator in Ernest Shackleton's Imperial Antarctic Expedition; engineer^[12]
• Neville Read Hudson DFC – RAAF pilot, Member of the Victorian Legislative Assembly (1976–1979)
• Jayden Hunt – AFL footballer

• Peter Isaacson AM, DFC, AFC, DFM – publisher and decorated military pilot^[1]

• Ben Jacobs – AFL footballer^[1]
• Christian Jollie Smith – solicitor, co-founder of the Communist Party of Australia, taught English Literature at Brighton Grammar School (1919)

• Josh Kelly – AFL footballer^[1]

• Andrew Lauterstein – Olympic swimmer^[1]
• Cyril Lloyd – a senior British Army officer during the Second World War
• Brigadier John Lloyd CBE, DSO, MC & Bar – senior Australian Army officer who fought in the First and Second World Wars, farmer, and licensing magistrate
• Matthew Lloyd – Olympic cyclist^[1]
• Corbett Lyon – architect, art patron and academic^[1]

• Craig Marais – international field hockey player
• Mat McBriar – American football player^[1]
• Michael McCarthy – member of staff, VFL footballer
• William C. McClelland – doctor, VFL footballer and Victorian Football League President^[1][13]
• Andrew McGrath – AFL footballer^[1]
• John Charles McIntyre – former Anglican Bishop of the Diocese of Gippsland, Victoria; recipient of the Centenary Medal 2003 (also attended Fort Street High School)^[14]
• Brad McKay – doctor, author and television personality
• Claude McKay – journalist, newspaper proprietor
• Samuel McLaren – mathematician, mathematical physicist, killed in action during the Battle of the Somme
• Professor Ian Meredith AM – interventional cardiologist, Director of MonashHeart, Professor of Cardiology at Monash University^[1]
• Gary Minihan – Olympian, Commonwealth Medal winner, Australian record holder (since 1984)^[1]
• Roy Morgan – pollster, market researcher, and Melbourne City councillor 1959–1974
• Nathan Murphy – AFL footballer

• Lieutenant-Colonel James Joachim Nicholas M.B.B.S., M.D. – VFL footballer, killed in action in World War I

• Sean O'Boyle – composer and conductor^[1]
• Bill O'Hara – surgeon, VFL footballer with St Kilda
• James Ryan O'Neill (born Leigh Anthony Bridgart in 1947) – convicted murderer and suspected serial killer

• Roy Paton – farmer, President Towong Shire Council (1929–1930, 1932–1933), Member of the Victorian Legislative Assembly (1932–1947)
• Alexander Augustus Norman Dudley "Jerry" Pentland, MC, DFC, AFC – aviator, World War I fighter ace
• Archie Perkins – AFL footballer with Essendon
• Charlie Pickering – Australian comedian, television and radio presenter, author and producer, and host of The Weekly with Charlie Pickering^[1]
• Andrew Plympton – businessman, sports administrator, President St Kilda Football Club 1993–2000^[1]
• Sir Sir Murray Victor Porter – Member of the Victorian Legislative Assembly
• Harry Potter – rugby union footballer with UK team Leicester Tigers
• Will Pucovski – cricketer^[1]

• Peter Reith – Australian politician (Liberal); Minister in Howard Government 1996–2003; Member for the seat of Flinders^[1][15]
• John Ross – Member of the Victorian Legislative Council (1996–2002)
• Michael Rozenes QC – Chief judge of the County Court of Victoria^[1]

• Christian Salem – AFL footballer^[1]
• Jack Shelton – VFL footballer with St Kilda and South Melbourne; killed in action at Tobruk in 1941
• David Shepherd – Victorian cricketer, and VFL footballer with St Kilda^[1]
• Tommy Smith – international racing driver
• David Smorgon OAM – Australian businessman and member of the Smorgon family^[1]
• Major General Victor Stantke, CBE – senior officer in the Australian Army during the First World War and Second World War, member of staff
• Ivan Stedman – swimmer, silver medal in the 4×200-metre freestyle relay at the 1920 Summer Olympics in Antwerp, Belgium
• Jock Sturrock MBE – yachtsman^[1]

• Herbert Valentine Tarte – Fiji-born planter, and Member of the Victorian Legislative Council
• Peter Thomson – influential Anglican priest^[1]
• Albert Thurgood – VFL footballer^[1]
• Will Thursfield – AFL footballer
• Brigadier Raymond Walter Tovell –distinguished soldier, Member of the Victorian Legislative Assembly^[1][16]

• Jim Vickers-Willis – journalist and square dance caller

• Sam Walsh AO – businessman, philanthropist^[1]
• Doug Warbrick – co-founder of Rip Curl
• Matthew Warnock – AFL footballer
• Robert Warnock – AFL footballer
• Jack Watts – AFL footballer, No.1 Draft pick 2008^[1]
• Charles William George Wheeler – Master of the Supreme Court of Victoria^[17][18]
• Julien Wiener – Australian Test cricketer^[1]
• Harry Williams – golfer, Australian Amateur Champion in 1931 and 1937
• David Wittey – AFL footballer

• Masa Yamaguchi – professional actor on stage and in film^[1]

• Allan Zavod – pianist, composer, jazz musician, and conductor^[1]
• Charles Henry Zercho – VFA footballer with Essendon (1890), chaplain and resident master at Brighton Grammar School (1891–1892, and 1911–1913)