| 13405 | ONG, Stephanie Wei Shi | East Doncaster Secondary College | Doncaster East | Further Mathematics | 45 |
| 13406 | ONG, Timothy | Oxley Christian College | Chirnside Park | English | 42 |
| 13407 | ONG, Timothy | Catholic Regional College Sydenham | Sydenham | English | 40 |
| 13408 | ONG, Timothy | Oxley Christian College | Chirnside Park | Further Mathematics | 40 |
| 13409 | ONG, Valerie Li Wen | MacRobertson Girls High School | Melbourne | Psychology | 45 |
| 13410 | ONG, Valerie Li Wen | MacRobertson Girls High School | Melbourne | Legal Studies | 42 |
| 13411 | ONG, Xue Ting Nicole | Nossal High School | Berwick | Further Mathematics | 48 |
| 13412 | ONG, Ying-Kuan Andrew | Melbourne High School | South Yarra | English | 43 |
| 13413 | ONG, Ying-Kuan Andrew | Melbourne High School | South Yarra | Literature | 41 |
| 13414 | ONSIONG, Rebecca | Glen Waverley Secondary College | Glen Waverley | Languages: French | 45 |
| |
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| 13415 | ONSIONG, Rebecca | Glen Waverley Secondary College | Glen Waverley | Chemistry | 40 |
| 13416 | ONUFREICHUK, Julia Yelena | Sacre Coeur | Glen Iris | Studio Arts | 43 |
| 13417 | OOI, Heng Xi | Fintona Girls School | Balwyn | English as an Additional Language | 42 |
| 13418 | OOI, Ray Hua | Carey Baptist Grammar School | Kew | English as an Additional Language | 43 |
| 13419 | OOI, Ray Hua | Carey Baptist Grammar School | Kew | History: Revolutions | 41 |
| 13420 | OOMMEN, Sandra | Penleigh and Essendon Grammar School | Keilor East | Languages: Indonesian Second Language | 42 |
| 13421 | OOMMEN, Sandra | Penleigh and Essendon Grammar School | Keilor East | Health and Human Development | 41 |
| 13422 | OOSTHUIZEN, Nadia | Mentone Girls Grammar School | Mentone | Psychology | 50 |
| 13423 | OOSTHUIZEN, Nadia | Mentone Girls Grammar School | Mentone | English | 41 |
| 13424 | OPALUCH, Hannah Mai | Frankston High School | Frankston | Outdoor and Environmental Studies | 46 |
| 13425 | OPAT, Lara | Firbank Grammar School | Brighton | Psychology | 47 |
| 13426 | OPAT, Lara | Firbank Grammar School | Brighton | Further Mathematics | 42 |
| 13427 | OPIE, Samantha | Mentone Girls Secondary College | Mentone | Health and Human Development | 40 |
| 13428 | OPT HOOG, Renn | Mazenod College | Mulgrave | English | 50 |
| 13429 | OPT HOOG, Renn | Mazenod College | Mulgrave | Literature | 46 |
| 13430 | OPT HOOG, Renn | Mazenod College | Mulgrave | Global Politics | 43 |
| 13431 | OPT HOOG, Renn | Mazenod College | Mulgrave | Languages: Italian | 40 |
| 13432 | ORCHARD, Samson Leslie | Carey Baptist Grammar School | Kew | Information and Communications Technology (VCE VET) | 43 |
| 13433 | ORELOWITZ, Zachari Adam | Bialik College | Hawthorn | Religion and Society | 50 |
| 13434 | ORELOWITZ, Zachari Adam | Bialik College | Hawthorn | Mathematical Methods (CAS) | 42 |
| 13435 | ORN, Ivy | Killester College | Springvale | Visual Communication Design | 40 |
| 13436 | ORNE-GLIEMANN, Rebbekah Sarah | Koo Wee Rup Secondary College | Koo Wee Rup | Physical Education | 40 |
| 13437 | ORNSBY, Carla | Firbank Grammar School | Brighton | Biology | 44 |
| 13438 | ORO, Lachlan Jayden | St Kevins College | Toorak | Further Mathematics | 47 |
| 13439 | ORO, Lachlan Jayden | St Kevins College | Toorak | English | 40 |
| 13440 | ORR, Clara Eliza | Ballarat Grammar School | Wendouree | Product Design and Technology | 43 |
| 13441 | ORR, Taylah Michelle | Beaconhills College Berwick | Berwick | English | 41 |
| 13442 | ORR, Taylah Michelle | Beaconhills College Berwick | Berwick | Psychology | 41 |
| 13443 | ORTON, Lilian May | Toorak College | Mount Eliza | Studio Arts | 45 |
| 13444 | ORWIN, Emma | Leibler Yavneh College | Elsternwick | English | 44 |
| 13445 | OSBORN, Erin Leigh | Catholic College Bendigo | Bendigo | Outdoor and Environmental Studies | 42 |
| 13446 | OSBORNE, Emily Grace | Goulburn Valley Grammar School | Shepparton | Industry and Enterprise | 42 |
| 13447 | OSBORNE, Kate | Strathcona Girls Grammar School | Canterbury | English | 40 |
| 13448 | OSBORNE, Sarah Jane | Methodist Ladies College | Kew | Drama | 40 |
| 13449 | OSBORNE, William Eric | Maribyrnong College | Maribyrnong | Further Mathematics | 40 |
| 13450 | OSBORNE-RIGBY, Willow Georgia | Ballarat Clarendon College | Ballarat | Psychology | 44 |
| 13451 | OSBURN, Blake Adam | The Geelong College | Newtown | Environmental Science | 40 |
| 13452 | OSBURN, Jessica Sarah | McKinnon Secondary College | McKinnon | Psychology | 45 |
| 13453 | OSMOND, Maegan Molly Kate | Ballarat Grammar School | Wendouree | Physical Education | 50 |
| 13454 | OSMOND, Maegan Molly Kate | Ballarat Grammar School | Wendouree | Health and Human Development | 43 |