| 1851 | O'Dwyer, Sophie Laurene | Yarrawonga College P-12 | Yarrawonga | English | 41 |
| 1852 | O'Flynn, Oliver James | Haileybury College | Keysborough | English | 45 |
| 1853 | O'Gara, Eimear Charlotte Aida | St Aloysius College | North Melbourne | English | 40 |
| 1854 | O'Keeffe, Zane Harrison | De La Salle College | Malvern | English | 46 |
| 1855 | O'Mahony, Mark Anthony | St Kevins College | Toorak | English | 42 |
| 1856 | O'Malley, Matthew Mac Mahon | Emmaus College | Vermont South | English | 40 |
| 1857 | O'Meara, Lucy Catherine | Emmaus College | Vermont South | English | 48 |
| 1858 | O'Rourke, Brodie James | Ivanhoe Grammar School Ridgeway | Ivanhoe | English | 46 |
| 1859 | O'Rourke, Thomas Mark | Mentone Grammar School | Mentone | English | 41 |
| 1860 | O'Sullivan, Peggy | Star of the Sea College | Brighton | English | 42 |
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| 1861 | O'Sullivan, Phoebe Jennifer Moore | St Michaels Grammar School | St Kilda | English | 41 |
| 1862 | O'Sullivan, Poppy Grace | Loreto Mandeville Hall | Toorak | English | 41 |
| 1863 | Oakley, Charlie Andrew | Luther College | Croydon Hills | English | 44 |
| 1864 | Oakley-Slingsby, Jemma Judith | Yarra Valley Grammar School | Ringwood | English | 44 |
| 1865 | Obeyesekere, Salome | Camberwell Girls Grammar School | Canterbury | English | 42 |
| 1866 | Obolenski, Margaret Rita | Balwyn High School | Balwyn North | English | 46 |
| 1867 | Occhiuto, Damon Marcus | Salesian College Chadstone | Chadstone | English | 45 |
| 1868 | Officer, Gabriella Falkner | Ballarat Clarendon College | Ballarat | English | 43 |
| 1869 | Oliver, Bethany Sophia | Good News Lutheran College | Tarneit | English | 41 |
| 1870 | Oliver, Libby Catherine | Mentone Girls Grammar School | Mentone | English | 44 |
| 1871 | Olnood, Eliya | Korowa Anglican Girls School | Glen Iris | English | 41 |
| 1872 | Olsson, Elizabeth Sophia | Kambrya College | Berwick | English | 43 |
| 1873 | Ong, Andrew Eng-Chen | Camberwell Grammar School | Canterbury | English | 50 |
| 1874 | Ong, Ryan Khye Ern | Yarra Valley Grammar School | Ringwood | English | 48 |
| 1875 | Onibokun, Oluwatobi Blessing | Chairo Christian School Drouin | Drouin | English | 40 |
| 1876 | Ooi, Izac Jie Ming | Haileybury College | Keysborough | English | 44 |
| 1877 | Ooi, Justin Yi En | Melbourne High School | South Yarra | English | 44 |
| 1878 | Orb, Tristan Harrison | Brighton Grammar School | Brighton | English | 40 |
| 1879 | Osagiede, Stephanie Esohe | Gladstone Park Secondary College | Gladstone Park | English | 40 |
| 1880 | Otkun, Elifnur | Ilim College of Australia | Broadmeadows | English | 42 |
| 1881 | Oxley, Liam | St Bernards College | Essendon | English | 40 |
| 1882 | Oyston, Ethan | St Marys College Melbourne | St Kilda East | English | 41 |
| 1883 | Ozcagli, Atahan | McKinnon Secondary College | McKinnon | English | 46 |
| 1884 | Ozdamar, Beyza | Ilim College of Australia | Broadmeadows | English | 41 |
| 1885 | Padukka, Sithusa Nethdini | John Monash Science School | Clayton | English | 41 |
| 1886 | Page, Amber Ann | Mordialloc College | Mordialloc | English | 42 |
| 1887 | Pajouhesh, Kaiden | Melbourne Grammar School | Melbourne | English | 42 |
| 1888 | Palacios-Banay, Milla Rose | Sacre Coeur | Glen Iris | English | 45 |
| 1889 | Palacios-Banay, Saskia Grace | Sacre Coeur | Glen Iris | English | 43 |
| 1890 | Palamara, Sienna Lily | Sacred Heart College Geelong | Newtown | English | 40 |
| 1891 | Palios, Connor Immanuel | Caulfield Grammar School Caulfield | St Kilda East | English | 42 |
| 1892 | Palis, Daphne Gail | Covenant College | Bell Post Hill | English | 42 |
| 1893 | Pallimulla, Sanumi Sandinsa | Hillcrest Christian College | Clyde North | English | 42 |
| 1894 | Pallpratt, Amity | Bacchus Marsh Grammar | Bacchus Marsh | English | 41 |
| 1895 | Palmer, Madeleine Grace Leah | Academy of Mary Immaculate | Fitzroy | English | 41 |
| 1896 | Pan, Ying- Gu | Macrobertson Girls High School | Melbourne | English | 42 |
| 1897 | Panagiotopoulos, Stefanos | Haileybury College | Keysborough | English | 41 |
| 1898 | Pandey, Kaashvi | Glen Waverley Secondary College | Glen Waverley | English | 40 |
| 1899 | Pandey, Subekchha | Frankston High School | Frankston | English | 41 |
| 1900 | Pandy, Olivia Kristelly | Camberwell Girls Grammar School | Canterbury | English | 42 |
Last Updated: 22 Aug 2024