| 13305 | O'Sullivan, Amelia | Brauer College | Warrnambool | English | 41 |
| 13306 | O'Sullivan, Chloe Ava | Methodist Ladies College | Kew | Product Design and Technologies | 45 |
| 13307 | O'Sullivan, Declan Jack | Galen College | Wangaratta | Physical Education | 42 |
| 13308 | O'Sullivan, Sean Christopher | Trinity Grammar School | Kew | General Mathematics | 44 |
| 13309 | O'Sullivan, Sean Christopher | Trinity Grammar School | Kew | English | 43 |
| 13310 | O'Toole, Phoebe Anna Louise | Kilbreda College | Mentone | Sport and Recreation (VCE VET) | 43 |
| 13311 | O'Toole, Phoebe Anna Louise | Kilbreda College | Mentone | Foundation Mathematics | 42 |
| 13312 | Oakley, Keira Shaelyn | Methodist Ladies College | Kew | Health and Human Development | 43 |
| 13313 | Oakley, Keira Shaelyn | Methodist Ladies College | Kew | Business Management | 40 |
| 13314 | Oates, Amy Rebecca | Bacchus Marsh Grammar | Bacchus Marsh | Systems Engineering | 50 |
| |
|||||
| 13315 | Oates, Pablo Villasanta | Gippsland Grammar | Sale | Media | 44 |
| 13316 | Oates, Pablo Villasanta | Gippsland Grammar | Sale | Languages: French | 40 |
| 13317 | Obaida, Yaseen | Yarra Valley Grammar School | Ringwood | English | 43 |
| 13318 | Obedoza, Aile Joy Aquiatan | Lara Secondary College | Lara | Health and Human Development | 40 |
| 13319 | Oberoi, Yajat | Caroline Chisholm Catholic College | Braybrook | English | 41 |
| 13320 | Oborne, Milly Rose | Strathmore Secondary College | Strathmore | Product Design and Technologies | 47 |
| 13321 | Occhiuto, Anton Pierce | Salesian College Chadstone | Chadstone | Psychology | 49 |
| 13322 | Occhiuto, Anton Pierce | Salesian College Chadstone | Chadstone | Environmental Science | 48 |
| 13323 | Occhiuto, Anton Pierce | Salesian College Chadstone | Chadstone | Literature | 44 |
| 13324 | Occhiuto, Anton Pierce | Avila College | Mount Waverley | Food Studies | 43 |
| 13325 | Occhiuto, Anton Pierce | Salesian College Chadstone | Chadstone | Visual Communication Design | 43 |
| 13326 | Oddie, Lucia | Carey Baptist Grammar School | Kew | Geography | 42 |
| 13327 | Oddy, Madeline Jane | Avila College | Mount Waverley | Agricultural and Horticultural Studies | 47 |
| 13328 | Oddy, Madeline Jane | Avila College | Mount Waverley | Psychology | 45 |
| 13329 | Oddy, Madeline Jane | Avila College | Mount Waverley | English | 42 |
| 13330 | Oehlers, Mishka Bernadette | Victorian College of the Arts Secondary School | Southbank | Dance (VCE VET) | 40 |
| 13331 | Oeng, Siev Khim | MacRobertson Girls High School | Melbourne | Physics | 46 |
| 13332 | Oeng, Siev Khim | MacRobertson Girls High School | Melbourne | Specialist Mathematics | 41 |
| 13333 | Officer, Martha Amelie Belinda | St Catherines School | Toorak | General Mathematics | 42 |
| 13334 | Officer, Martha Amelie Belinda | St Catherines School | Toorak | Business Management | 41 |
| 13335 | Ofoedu, Alexandra Chinwe | Suzanne Cory High School | Werribee | Health and Human Development | 44 |
| 13336 | Ofoedu, Alexandra Chinwe | Suzanne Cory High School | Werribee | Legal Studies | 43 |
| 13337 | Ofoedu, Alexandra Chinwe | Suzanne Cory High School | Werribee | English Language | 40 |
| 13338 | Ogden, Cooper Trent | Marcellin College | Bulleen | Geography | 45 |
| 13339 | Ogden, Cooper Trent | Marcellin College | Bulleen | English | 44 |
| 13340 | Oghanna, James | St Monicas College | Epping | Biology | 41 |
| 13341 | Oghanna, Shona | Ivanhoe Grammar School Plenty | Doreen | Physical Education | 48 |
| 13342 | Oghanna, Shona | Ivanhoe Grammar School Plenty | Doreen | Biology | 44 |
| 13343 | Ogilvie, Sophie Isabelle | Waverley Christian College Narre Warren South | Narre Warren South | English | 40 |
| 13344 | Ogilvy, Cooper David | Melbourne Grammar School | Melbourne | Systems Engineering | 47 |
| 13345 | Ogilvy, Cooper David | Melbourne Grammar School | Melbourne | Chemistry | 46 |
| 13346 | Ogilvy, Cooper David | Melbourne Grammar School | Melbourne | Physics | 43 |
| 13347 | Ogilvy, Cooper David | Melbourne Grammar School | Melbourne | English | 40 |
| 13348 | Ognibene, Abigail Rose | Beaconhills College Pakenham | Pakenham | Health and Human Development | 40 |
| 13349 | Ognibene, Abigail Rose | Beaconhills College Pakenham | Pakenham | Psychology | 40 |
| 13350 | Ogrizek, Daniel Stan Michael | Thomas Carr College | Tarneit | Data Analytics | 41 |
| 13351 | Oh, Brandon | Emmaus College | Vermont South | Physical Education | 46 |
| 13352 | Oh, Jaden Jae Won | Mazenod College | Mulgrave | General Mathematics | 41 |
| 13353 | Oh, Jayden Kay Hern | Balwyn High School | Balwyn North | English | 50 |
| 13354 | Oh, Jayden Kay Hern | Balwyn High School | Balwyn North | Chemistry | 45 |