| 13147 | OSTROGNAJ, Teagan Jade | Beaconhills College Pakenham | Pakenham | Health and Human Development | 40 |
| 13148 | OSTROWSKI, Isabelle Ines | Methodist Ladies College | Kew | Chemistry | 44 |
| 13149 | OSTROWSKI, Isabelle Ines | Methodist Ladies College | Kew | Physics | 42 |
| 13150 | OSTROWSKI, Isabelle Ines | Methodist Ladies College | Kew | English Language | 41 |
| 13151 | OSWALD, Alexander | St Kevins College | Toorak | History: Revolutions | 45 |
| 13152 | OTHEN, Declan Andrew | Xavier College | Kew | English | 40 |
| 13153 | OTHEN, Declan Andrew | Xavier College | Kew | Further Mathematics | 40 |
| 13154 | OTS, Nicholas Charles | Oxley Christian College | Chirnside Park | English | 41 |
| 13155 | OU, Julian Sun | Brighton Grammar School | Brighton | English | 48 |
| 13156 | OU, Paul | Nossal High School | Berwick | Specialist Mathematics | 49 |
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| 13157 | OU, Paul | Nossal High School | Berwick | Physics | 45 |
| 13158 | OU, Simon | Melbourne High School | South Yarra | Specialist Mathematics | 50 |
| 13159 | OU, Simon | Melbourne High School | South Yarra | Mathematical Methods (CAS) | 47 |
| 13160 | OU, Simon | Melbourne High School | South Yarra | English Language | 43 |
| 13161 | OU, Simon | Melbourne High School | South Yarra | Chemistry | 40 |
| 13162 | OU, Stanley | Glen Waverley Secondary College | Glen Waverley | Further Mathematics | 47 |
| 13163 | OU, Stanley | Glen Waverley Secondary College | Glen Waverley | Mathematical Methods (CAS) | 43 |
| 13164 | OUK, Monica | Westall Secondary College | Clayton South | English | 42 |
| 13165 | OUSLINIS, Cassandra Isabel | Firbank Grammar School | Brighton | English | 45 |
| 13166 | OUSLINIS, Cassandra Isabel | Firbank Grammar School | Brighton | Biology | 40 |
| 13167 | OUYANG, Wenqin | MacRobertson Girls High School | Melbourne | Further Mathematics | 43 |
| 13168 | OUYANG, Wenqin | MacRobertson Girls High School | Melbourne | English | 42 |
| 13169 | OVLACHI, Eszter | Alkira Secondary College | Cranbourne North | English as an Additional Language | 48 |
| 13170 | OVLACHI, Eszter | Alkira Secondary College | Cranbourne North | Sociology | 40 |
| 13171 | OW, Olivia Wei Zhen | MacRobertson Girls High School | Melbourne | Accounting | 42 |
| 13172 | OWEN, Alanna Joy | Kilvington Grammar School | Ormond | Business Management | 43 |
| 13173 | OWEN, Alanna Joy | Kilvington Grammar School | Ormond | Health and Human Development | 40 |
| 13174 | OWEN, Alexandra Heather | Presbyterian Ladies College | Burwood | Literature | 42 |
| 13175 | OWEN, Ayesha Lee | Toorak College | Mount Eliza | Further Mathematics | 46 |
| 13176 | OWEN, Kate Louise | Northcote High School | Northcote | Psychology | 42 |
| 13177 | OWENS, Alexander Michael | Victorian College of the Arts Secondary School | Southbank | Music Investigation | 50 |
| 13178 | OWENS, Alexander Michael | Victorian College of the Arts Secondary School | Southbank | Music Style and Composition | 48 |
| 13179 | OWENS, Alexander Michael | Victorian College of the Arts Secondary School | Southbank | English | 41 |
| 13180 | OWENS, Cameron | Koonung Secondary College | Mont Albert North | Mathematical Methods (CAS) | 43 |
| 13181 | OWENS, Cameron | Koonung Secondary College | Mont Albert North | Psychology | 41 |
| 13182 | OWENS, Kai | Mentone Grammar School | Mentone | Further Mathematics | 43 |
| 13183 | OWENS, Lachlan Raymond | St Patricks College | Ballarat | Further Mathematics | 40 |
| 13184 | OXLADE, Grace Lynette | Shelford Girls Grammar | Caulfield | Studio Arts | 41 |
| 13185 | OXLEY, Kate Elizabeth | Our Lady of Mercy College | Heidelberg | Physical Education | 44 |
| 13186 | OXLEY, Kate Elizabeth | Our Lady of Mercy College | Heidelberg | Media | 43 |
| 13187 | OXLEY, Kate Elizabeth | Our Lady of Mercy College | Heidelberg | English Language | 42 |
| 13188 | OXLEY, Kate Elizabeth | Our Lady of Mercy College | Heidelberg | Languages: French | 42 |
| 13189 | OYARZO OJEDA, Gabriel Ivan | Koonung Secondary College | Mont Albert North | Mathematical Methods (CAS) | 45 |
| 13190 | OYARZO OJEDA, Gabriel Ivan | Koonung Secondary College | Mont Albert North | Specialist Mathematics | 44 |
| 13191 | OYARZO OJEDA, Gabriel Ivan | Koonung Secondary College | Mont Albert North | Physics | 43 |
| 13192 | OYARZUN, Adele Colette | Mentone Grammar School | Mentone | Legal Studies | 47 |
| 13193 | OYARZUN, Adele Colette | Mentone Grammar School | Mentone | Psychology | 41 |
| 13194 | OZCOBAN, Volkan | Kew High School | Kew East | Chemistry | 43 |
| 13195 | OZCOBAN, Volkan | Kew High School | Kew East | Physics | 41 |
| 13196 | OZDIL, Alayca | Balwyn High School | Balwyn North | Studio Arts | 41 |