| 12079 | Oldham, Maxwell Tyler | St Bedes College | Mentone | Further Mathematics | 42 |
| 12080 | Oldham, Ned Stephen | Mildura Senior College | Mildura | Further Mathematics | 49 |
| 12081 | Oleksy, Daniel | Huntingtower School | Mount Waverley | Data Analytics | 47 |
| 12082 | Olive, Annabelle Michelle | Carey Baptist Grammar School | Kew | Health and Human Development | 46 |
| 12083 | Olive, Sophie Edith | Methodist Ladies College | Kew | Business Management | 41 |
| 12084 | Oliveira, Jacinta Sofia | Kardinia International College | Bell Post Hill | Physical Education | 41 |
| 12085 | Oliver, Charlotte Ruby | St Mary MacKillop College | Swan Hill | Business Management | 43 |
| 12086 | Oliver, Libby Catherine | Mentone Girls Grammar School | Mentone | Biology | 45 |
| 12087 | Oliver, Michaela Daisy | Virtual School Victoria | Thornbury | Media | 40 |
| 12088 | Oliver, William Edward | Trinity Grammar School | Kew | English | 44 |
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| 12089 | Oliver, William Edward | Trinity Grammar School | Kew | Legal Studies | 40 |
| 12090 | Olivieri, Xavier Daniel | Marcellin College | Bulleen | Geography | 41 |
| 12091 | Ollerenshaw, Hannah Lucy | Loreto College | Ballarat | Mathematical Methods | 41 |
| 12092 | Ollerenshaw, Hannah Lucy | Loreto College | Ballarat | Physics | 41 |
| 12093 | Ollerenshaw, Hannah Lucy | Loreto College | Ballarat | Literature | 40 |
| 12094 | Olorenshaw, Asher George Theodore | Princes Hill Secondary College | Princes Hill | English | 40 |
| 12095 | Olsen, Lachlan Andrew | Phoenix P-12 Community College | Sebastopol | Further Mathematics | 41 |
| 12096 | Olsen, Ned Dunstan | Viewbank College | Viewbank | Systems Engineering | 41 |
| 12097 | Olsen-Wilken, Maxim Theodore | Melbourne High School | South Yarra | Visual Communication Design | 43 |
| 12098 | Olsen-Wilken, Maxim Theodore | Melbourne High School | South Yarra | Studio Arts | 41 |
| 12099 | Omar, Rayhon | Mazenod College | Mulgrave | Business Management | 41 |
| 12100 | Omran, Halimah | Ilim College of Australia | Broadmeadows | Sociology | 44 |
| 12101 | Omran, Halimah | Ilim College of Australia | Broadmeadows | Texts and Traditions | 43 |
| 12102 | Omran, Yousef Mohamed | Kardinia International College | Bell Post Hill | English | 42 |
| 12103 | Ong, Andrew Eng-Chen | Camberwell Grammar School | Canterbury | Biology | 50 |
| 12104 | Ong, Joyce Rhuoxing | Genazzano F.C.J. College | Kew | Mathematical Methods | 42 |
| 12105 | Ong, Joyce Rhuoxing | Genazzano F.C.J. College | Kew | English | 40 |
| 12106 | Ong, Lina | Wellington Secondary College | Mulgrave | Psychology | 45 |
| 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 |
| 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 |
Last Updated: 9 Feb 2023