| 12692 | Ostermeyer, Ben Oliver | Whitefriars College | Donvale | English | 41 |
| 12693 | Ostik-Smith, Aeonie Tala | MacRobertson Girls High School | Melbourne | Philosophy | 41 |
| 12694 | Ostrowski, Charlotte Ines | Methodist Ladies College | Kew | Languages: French | 46 |
| 12695 | Ostrowski, Charlotte Ines | Methodist Ladies College | Kew | Mathematical Methods | 46 |
| 12696 | Ostrowski, Madison | St Columbas College | Essendon | Media | 42 |
| 12697 | Ostwald, Mia Porta | Northcote High School | Northcote | Further Mathematics | 41 |
| 12698 | Ostwald, Mia Porta | Northcote High School | Northcote | Health and Human Development | 41 |
| 12699 | Otis, Adriana | Firbank Grammar School | Brighton | English | 47 |
| 12700 | Ott, Lindsay Ky | Waverley Christian College Wantirna South | Wantirna South | Software Development | 43 |
| 12701 | Otteraa, Odin Michael | Bacchus Marsh Grammar | Bacchus Marsh | Outdoor and Environmental Studies | 42 |
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| 12702 | Ou Young, Aaron | Melbourne High School | South Yarra | Further Mathematics | 42 |
| 12703 | Ou Young, Aaron | Melbourne High School | South Yarra | Legal Studies | 41 |
| 12704 | Ouizeman, Olivier Dean | St Kevins College | Toorak | English | 40 |
| 12705 | Ouliaris, Michael | Trinity Grammar School | Kew | Legal Studies | 42 |
| 12706 | Outsikas, George | Mazenod College | Mulgrave | Further Mathematics | 40 |
| 12707 | Outsikas, George | Mazenod College | Mulgrave | Global Politics | 40 |
| 12708 | Ouyang, Lauren | Presbyterian Ladies College | Burwood | English | 42 |
| 12709 | Ouyang, Lauren | Presbyterian Ladies College | Burwood | Further Mathematics | 41 |
| 12710 | Ovcaric, Ivana Ruby | Lowther Hall Anglican Grammar School | Essendon | English | 41 |
| 12711 | Ovcaric, Ivana Ruby | Lowther Hall Anglican Grammar School | Essendon | Visual Communication Design | 40 |
| 12712 | Overall, Charlotte Annabelle | Methodist Ladies College | Kew | Business (VCE VET) | 41 |
| 12713 | Overall, Harrison Hudson | Albert Park College | Albert Park | Software Development | 44 |
| 12714 | Overall, Harrison Hudson | Albert Park College | Albert Park | Further Mathematics | 43 |
| 12715 | Overall, Harrison Hudson | Albert Park College | Albert Park | Literature | 41 |
| 12716 | Overall, Harrison Hudson | Albert Park College | Albert Park | Physics | 40 |
| 12717 | Overall, Jessica Brookyln | Albert Park College | Albert Park | Health and Human Development | 44 |
| 12718 | Overall, Payton Eliza | Damascus College | Mount Clear | Drama | 40 |
| 12719 | Overberg, Samuel Henry | St Bedes College | Mentone | Geography | 40 |
| 12720 | Overhill, Isabel Amelie Treloar | Brighton Secondary College | Brighton East | Studio Arts | 42 |
| 12721 | Overton, Patrick Anthony | Penleigh and Essendon Grammar School | Keilor East | Visual Communication Design | 42 |
| 12722 | Overton, Patrick Anthony | Penleigh and Essendon Grammar School | Keilor East | English | 40 |
| 12723 | Ovuthithum, Thanunya | Firbank Grammar School | Brighton | Mathematical Methods | 40 |
| 12724 | Owen, Brooklyn Noah Benjamin | Ringwood Secondary College | Ringwood | English Language | 40 |
| 12725 | Owen, James Samuel | St Leonards College | Brighton East | Physics | 46 |
| 12726 | Owen, James Samuel | St Leonards College | Brighton East | Mathematical Methods | 44 |
| 12727 | Owen, James Samuel | St Leonards College | Brighton East | Music Performance | 41 |
| 12728 | Owen, James Samuel | St Leonards College | Brighton East | English | 40 |
| 12729 | Owen, James Samuel | St Leonards College | Brighton East | Specialist Mathematics | 40 |
| 12730 | Owen, Lauren Dannielle | Catholic Ladies College | Eltham | English | 42 |
| 12731 | Owen, Lauren Dannielle | Catholic Ladies College | Eltham | Further Mathematics | 41 |
| 12732 | Owen, Lauren Dannielle | Catholic Ladies College | Eltham | Legal Studies | 40 |
| 12733 | Owen, Lila Grace | Mount Waverley Secondary College | Mount Waverley | Media | 46 |
| 12734 | Owen, Lila Grace | Mount Waverley Secondary College | Mount Waverley | English | 43 |
| 12735 | Owen, Lila Grace | Mount Waverley Secondary College | Mount Waverley | Biology | 41 |
| 12736 | Owens, Liam | Strathmore Secondary College | Strathmore | English | 41 |
| 12737 | Owens, Nicholas Michael | Strathmore Secondary College | Strathmore | Further Mathematics | 40 |
| 12738 | Oxford, Ajarnae Kyla | Padua College | Mornington | Product Design and Technology | 46 |
| 12739 | Oxford, Ajarnae Kyla | Mount Martha School of Dance | Mount Martha | Dance | 41 |
| 12740 | Ozsoy, Aleyna | Aitken College | Greenvale | Sociology | 45 |
| 12741 | Ozsoy, Aleyna | Aitken College | Greenvale | History: Revolutions | 40 |