| 13239 | O'Connor, Jack Henry | Mentone Grammar School | Mentone | Physics | 44 |
| 13240 | O'Connor, Jack Henry | Mentone Grammar School | Mentone | Chemistry | 40 |
| 13241 | O'Connor, Jack Henry | Mentone Grammar School | Mentone | Specialist Mathematics | 40 |
| 13242 | O'Connor, Riley John | Mount Lilydale Mercy College | Lilydale | Sport and Recreation (VCE VET) | 42 |
| 13243 | O'Connor, Saige Prillie | Balcombe Grammar School | Mount Martha | Psychology | 40 |
| 13244 | O'Dea, Ethan Lee | Penleigh and Essendon Grammar School | Keilor East | Physical Education | 46 |
| 13245 | O'Dea, Ethan Lee | Penleigh and Essendon Grammar School | Keilor East | Physics | 45 |
| 13246 | O'Dea, Ethan Lee | Penleigh and Essendon Grammar School | Keilor East | Mathematical Methods | 44 |
| 13247 | O'Doherty, Erina Giovanna | Canterbury Girls Secondary College | Canterbury | Biology | 48 |
| 13248 | O'Doherty, Erina Giovanna | Canterbury Girls Secondary College | Canterbury | Chemistry | 43 |
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| 13249 | O'Doherty, Erina Giovanna | Canterbury Girls Secondary College | Canterbury | Specialist Mathematics | 41 |
| 13250 | O'Donnell, Gus Martin | Bacchus Marsh Grammar | Bacchus Marsh | Outdoor and Environmental Studies | 44 |
| 13251 | O'Donnell, Jacqueline Zara | Genazzano F.C.J. College | Kew | English | 50 |
| 13252 | O'Donnell, Jacqueline Zara | Genazzano F.C.J. College | Kew | Specialist Mathematics | 40 |
| 13253 | O'Donnell, Liam Joseph Ellis | St Kevins College | Toorak | Ancient History | 41 |
| 13254 | O'Donoghue, Jessica | Star of the Sea College | Brighton | Legal Studies | 42 |
| 13255 | O'Donoghue, Oisin Anthony | John Monash Science School | Clayton | General Mathematics | 46 |
| 13256 | O'Dwyer, Keira Veronica | Essendon Keilor College Essendon Campus | Essendon | Sport and Recreation (VCE VET) | 40 |
| 13257 | O'Farrell, Declan Rory | Whitefriars College | Donvale | Media | 40 |
| 13258 | O'Flynn, Olivia Belle | Our Lady of Sion College | Box Hill | Business Management | 40 |
| 13259 | O'Halloran, Bronte May | Sacred Heart College Geelong | Newtown | English | 44 |
| 13260 | O'Halloran, Bronte May | Sacred Heart College Geelong | Newtown | History: Revolutions | 42 |
| 13261 | O'Hara, Rachel Mary | Loreto Mandeville Hall | Toorak | Psychology | 42 |
| 13262 | O'Hare, Charlotte Eden Karen | John Monash Science School | Clayton | Music Contemporary Performance | 46 |
| 13263 | O'Hare, Charlotte Eden Karen | Virtual School Victoria | Thornbury | Theatre Studies | 41 |
| 13264 | O'Hoy, Edward Norman | Balwyn High School | Balwyn North | General Mathematics | 47 |
| 13265 | O'Kane, Patrick Joseph | St Bernards College | Essendon | English | 43 |
| 13266 | O'Kane, Patrick Joseph | St Bernards College | Essendon | Psychology | 41 |
| 13267 | O'Kane, Patrick Joseph | St Bernards College | Essendon | Business Management | 40 |
| 13268 | O'Keefe, Jocelyn Jade | Ave Maria College | Aberfeldie | Media | 50 |
| 13269 | O'Keefe, Jocelyn Jade | Ave Maria College | Aberfeldie | Business Management | 46 |
| 13270 | O'Keefe, Jocelyn Jade | Ave Maria College | Aberfeldie | Psychology | 45 |
| 13271 | O'Keefe, Jocelyn Jade | Ave Maria College | Aberfeldie | English | 42 |
| 13272 | O'Leary, William Kevin | Brighton Grammar School | Brighton | Chemistry | 42 |
| 13273 | O'Leary, William Kevin | Brighton Grammar School | Brighton | General Mathematics | 42 |
| 13274 | O'Leary, William Kevin | Brighton Grammar School | Brighton | Mathematical Methods | 40 |
| 13275 | O'Loan, Xanthe Matilda Kyffin | Melbourne Girls Grammar | South Yarra | Drama | 45 |
| 13276 | O'Loan, Xanthe Matilda Kyffin | Melbourne Girls Grammar | South Yarra | Classical Studies | 42 |
| 13277 | O'Mahoney, Lily Jane | Dromana Secondary College | Dromana | Visual Communication Design | 42 |
| 13278 | O'Mahony, Rory Josh | St Josephs College Ferntree Gully | Ferntree Gully | Health and Human Development | 40 |
| 13279 | O'Malley, Henry Francis | East Doncaster Secondary College | Doncaster East | General Mathematics | 48 |
| 13280 | O'Mara Galati, Maeve | Northern College of Arts and Technology | Preston | Music Performance (VCE VET) | 50 |
| 13281 | O'Meara, Alix Sandra | Swan Hill College | Swan Hill | General Mathematics | 41 |
| 13282 | O'Meara, Alix Sandra | Swan Hill College | Swan Hill | Health and Human Development | 40 |
| 13283 | O'Meara, Ella Jennifer | Tintern Grammar | Ringwood East | History: Revolutions | 46 |
| 13284 | O'Meara, Ella Jennifer | Tintern Grammar | Ringwood East | English | 44 |
| 13285 | O'Meara, Ella Jennifer | Tintern Grammar | Ringwood East | Psychology | 42 |
| 13286 | O'Meara, Ella Jennifer | Tintern Grammar | Ringwood East | General Mathematics | 41 |
| 13287 | O'Meara, Emmy May | Assumption College | Kilmore | Sport and Recreation (VCE VET) | 50 |
| 13288 | O'Neil, Gracie | St Francis Catholic College | Melton West | Literature | 41 |