| 13813 | O'Halloran, Megan | Genazzano F.C.J. College | Kew | Health and Human Development | 47 |
| 13814 | O'Halloran, Megan | Genazzano F.C.J. College | Kew | English | 41 |
| 13815 | O'Halloran, Stephanie | Mansfield Secondary College | Mansfield | Outdoor and Environmental Studies | 41 |
| 13816 | O'Keefe, Jessica | Star of the Sea College | Brighton | Media | 42 |
| 13817 | O'Keeffe, Ciara | Genazzano F.C.J. College | Kew | Physical Education | 42 |
| 13818 | O'Leary, Benjamin | Haileybury College | Keysborough | Further Mathematics | 41 |
| 13819 | O'Leary, Benjamin | Haileybury College | Keysborough | Legal Studies | 40 |
| 13820 | O'Leary, Mitchell | The Geelong College | Newtown | Further Mathematics | 41 |
| 13821 | O'Leary, Rose | Rosebud Secondary College | Rosebud | Product Design and Technology | 43 |
| 13822 | O'Loghlen, Erin | Sacred Heart Girls College | Hughesdale | Health and Human Development | 43 |
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| 13823 | O'Loghlen, Erin | Sacred Heart Girls College | Hughesdale | Further Mathematics | 42 |
| 13824 | O'Loghlen, Erin | Sacred Heart Girls College | Hughesdale | Physical Education | 42 |
| 13825 | O'Loughlin, Luke | Whitefriars College | Donvale | Further Mathematics | 44 |
| 13826 | O'Loughlin, Luke | Whitefriars College | Donvale | Religion and Society | 41 |
| 13827 | O'Loughlin, Rachel | Mary MacKillop Catholic College | Leongatha | Physical Education | 42 |
| 13828 | O'Loughlin, Rosemary | Star of the Sea College | Brighton | Mathematical Methods | 50 |
| 13829 | O'Loughlin, Rosemary | Star of the Sea College | Brighton | English | 44 |
| 13830 | O'Loughlin, Rosemary | Star of the Sea College | Brighton | Chemistry | 42 |
| 13831 | O'Malley, Liam | De La Salle College | Malvern | Business Management | 41 |
| 13832 | O'Meara, Daisy | Goulburn Valley Grammar School | Shepparton | Mathematical Methods | 41 |
| 13833 | O'Meara, Daisy | Goulburn Valley Grammar School | Shepparton | Biology | 40 |
| 13834 | O'Meara, Katelyn | Wangaratta High School | Wangaratta | Biology | 47 |
| 13835 | O'Meara, Katelyn | Wangaratta High School | Wangaratta | Languages: German | 41 |
| 13836 | O'Neil Donnellon, Rosemary | Loreto Mandeville Hall | Toorak | Literature | 40 |
| 13837 | O'Neill, Amelia | Firbank Grammar School | Brighton | Biology | 41 |
| 13838 | O'Neill, April | Phoenix P-12 Community College | Sebastopol | Psychology | 41 |
| 13839 | O'Neill, Gina | Carey Baptist Grammar School | Kew | Media | 42 |
| 13840 | O'Neill, Lachlan | Waverley Christian College Wantirna South | Wantirna South | Physics | 46 |
| 13841 | O'Neill, Lachlan | Waverley Christian College Wantirna South | Wantirna South | Mathematical Methods | 44 |
| 13842 | O'Neill, Lachlan | Waverley Christian College Wantirna South | Wantirna South | English | 42 |
| 13843 | O'Neill, Molly | Carey Baptist Grammar School | Kew | Studio Arts | 41 |
| 13844 | O'Neill, Molly | Carey Baptist Grammar School | Kew | Business Management | 40 |
| 13845 | O'Neill, Nicholas | Padua College | Mornington | Further Mathematics | 46 |
| 13846 | O'Neill, William | St Josephs College Ferntree Gully | Ferntree Gully | Legal Studies | 44 |
| 13847 | O'Neill, William | St Josephs College Ferntree Gully | Ferntree Gully | English | 42 |
| 13848 | O'Neill, William | St Josephs College Ferntree Gully | Ferntree Gully | Further Mathematics | 41 |
| 13849 | O'Regan, Hayden | Chisholm Institute of TAFE Frankston | Frankston | English | 43 |
| 13850 | O'Regan, Kieran | Catholic College Bendigo | Bendigo | Further Mathematics | 40 |
| 13851 | O'Reilly, Declan | McKinnon Secondary College | McKinnon | Physics | 40 |
| 13852 | O'Riordan, Bryony | Padua College | Mornington | English | 40 |
| 13853 | O'Riordan, Madison | Vermont Secondary College | Vermont | Literature | 41 |
| 13854 | O'Riordan, Madison | Vermont Secondary College | Vermont | English | 40 |
| 13855 | O'Rourke, Rachelle | Genazzano F.C.J. College | Kew | Psychology | 40 |
| 13856 | O'Shannassy, Dee Dee | Loreto Mandeville Hall | Toorak | Business Management | 42 |
| 13857 | O'Shannessy, Gabrielle | Shepparton Christian College | Shepparton | Psychology | 47 |
| 13858 | O'Shannessy, Gabrielle | Shepparton Christian College | Shepparton | Further Mathematics | 44 |
| 13859 | O'Shannessy, Gabrielle | Shepparton Christian College | Shepparton | Accounting | 40 |
| 13860 | O'Shannessy, Lucy | Methodist Ladies College | Kew | Biology | 40 |
| 13861 | O'Shaughnessy, Jack | Melbourne Grammar School | Melbourne | English | 50 |
| 13862 | O'Shaughnessy, Jack | Melbourne Grammar School | Melbourne | Chemistry | 43 |