| 12107 | Ong, Lina | Wellington Secondary College | Mulgrave | Chemistry | 41 |
| 12108 | Ong, Nicholas Pancacahya | Waverley Christian College Wantirna South | Wantirna South | Chemistry | 44 |
| 12109 | Ong, Nicholas Pancacahya | Waverley Christian College Wantirna South | Wantirna South | Mathematical Methods | 42 |
| 12110 | Ong, Nicholas Pancacahya | Waverley Christian College Wantirna South | Wantirna South | Biology | 41 |
| 12111 | Ong, Ryan Khye Ern | Yarra Valley Grammar School | Ringwood | Mathematical Methods | 45 |
| 12112 | Ongarato, Elio | Melbourne Grammar School | Melbourne | Studio Arts | 43 |
| 12113 | Ongsawasd, Marvin | Mount Waverley Secondary College | Mount Waverley | Biology | 47 |
| 12114 | Ongsawasd, Marvin | Mount Waverley Secondary College | Mount Waverley | Literature | 45 |
| 12115 | Onley, Hannah Jean | Goulburn Valley Grammar School | Shepparton | Health and Human Development | 44 |
| 12116 | Onturk, Ceylan | North Geelong Secondary College | Geelong North | Further Mathematics | 40 |
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| 12117 | Oo, Janice Jie Ting | Peninsula International School Australia Malaysia Campus | Selangor, Malaysia | Further Mathematics | 43 |
| 12118 | Ooi, Alicia Faith Jie-Si | Camberwell Girls Grammar School | Canterbury | Further Mathematics | 45 |
| 12119 | Ooi, Amber Mei Ling | East Doncaster Secondary College | Doncaster East | Health and Human Development | 45 |
| 12120 | Ooi, Amber Mei Ling | East Doncaster Secondary College | Doncaster East | Biology | 42 |
| 12121 | Ooi, Amber Mei Ling | East Doncaster Secondary College | Doncaster East | English | 40 |
| 12122 | Ooi, Izac Jie Ming | Haileybury College | Keysborough | Biology | 45 |
| 12123 | Ooi, Joseph Yue Sir | Box Hill High School | Box Hill | Further Mathematics | 42 |
| 12124 | Oon, Gail Xin | Waverley Christian College Wantirna South | Wantirna South | Health and Human Development | 43 |
| 12125 | Oon, Jessica Xiu Hui | Macrobertson Girls High School | Melbourne | Literature | 47 |
| 12126 | Oon, Jessica Xiu Hui | Macrobertson Girls High School | Melbourne | Mathematical Methods | 44 |
| 12127 | Oon, Jessica Xiu Hui | Macrobertson Girls High School | Melbourne | Accounting | 41 |
| 12128 | Oosterlaan, Chase | St Josephs College Geelong | Newtown | English | 40 |
| 12129 | Op'T Hoog, Gwyneth Emily | Melbourne Girls College | Richmond | Biology | 48 |
| 12130 | Op'T Hoog, Lucinda Jane | Melbourne Girls College | Richmond | Biology | 47 |
| 12131 | Oppy, Ethan Grant | Whitefriars College | Donvale | Literature | 41 |
| 12132 | Oppy, Ethan Grant | Whitefriars College | Donvale | Music Performance | 41 |
| 12133 | Oppy, Ethan Grant | Whitefriars College | Donvale | Further Mathematics | 40 |
| 12134 | Orange, Augustus Marlin | Melbourne High School | South Yarra | Geography | 42 |
| 12135 | Orchard, Bella | Mentone Grammar School | Mentone | Health and Human Development | 44 |
| 12136 | Ord, Ruby Ellen | St Leonards College | Brighton East | Health and Human Development | 40 |
| 12137 | Orelli, Anna Grace | Strathcona Girls Grammar School | Canterbury | Drama | 48 |
| 12138 | Orelli, Anna Grace | Strathcona Girls Grammar School | Canterbury | English | 48 |
| 12139 | Orelli, Anna Grace | Strathcona Girls Grammar School | Canterbury | Physics | 42 |
| 12140 | Orelli, Anna Grace | Strathcona Girls Grammar School | Canterbury | Chemistry | 41 |
| 12141 | Orfanidis, Caterina | Siena College | Camberwell | Further Mathematics | 42 |
| 12142 | Orfanidis, Caterina | Siena College | Camberwell | Legal Studies | 42 |
| 12143 | Orgill, Joshua James | Beaconhills College Berwick | Berwick | Biology | 43 |
| 12144 | Orlowska, Maja Antonina | South Oakleigh Secondary College | Oakleigh South | English as an Additional Language | 45 |
| 12145 | Ortantzoglou, Christian Romeo | Padua College | Mornington | Sport and Recreation (VCE VET) | 46 |
| 12146 | Osadchiy, Richard Ryan | The King David School | Armadale | Media | 42 |
| 12147 | Osborn, Rosie Winifred | St Catherines School | Toorak | English | 50 |
| 12148 | Osborn, Rosie Winifred | St Catherines School | Toorak | Legal Studies | 44 |
| 12149 | Osborn, William Isaac | Catholic College Sale | Sale | Physical Education | 40 |
| 12150 | Osborne Grigg, Nell | Surf Coast Secondary College | Torquay | Studio Arts | 49 |
| 12151 | Osborne Grigg, Nell | Surf Coast Secondary College | Torquay | Visual Communication Design | 42 |
| 12152 | Osborne Grigg, Nell | Surf Coast Secondary College | Torquay | English | 41 |
| 12153 | Osborne, Caitlin Louise | Eltham College of Education | Research | Physical Education | 43 |
| 12154 | Osborne, Caitlin Louise | Eltham College of Education | Research | English | 40 |
| 12155 | Osborne, Gemma Patricia | Loreto Mandeville Hall | Toorak | English | 41 |
| 12156 | Osborne, Sarah Rayne | Berwick Secondary College | Berwick | Media | 41 |
Last Updated: 9 Feb 2023