| 18504 | Yu, Yue | Fintona Girls School | Balwyn | Chemistry | 41 |
| 18505 | Yu, Zhaozhi | Haileybury College Tianjin Campus | Tianjin, China | Languages: Chinese First Language | 45 |
| 18506 | Yu, Zihang | Caulfield Grammar School Wheelers Hill | Wheelers Hill | Mathematical Methods | 42 |
| 18507 | Yu, Ziyun | Caulfield Grammar School Wheelers Hill | Wheelers Hill | Mathematical Methods | 42 |
| 18508 | Yu, Zongyao | Haileybury College Tianjin Campus | Tianjin, China | Languages: Chinese First Language | 46 |
| 18509 | Yuan, Ada | University High School | Parkville | Biology | 43 |
| 18510 | Yuan, Chloe | MacRobertson Girls High School | Melbourne | Psychology | 40 |
| 18511 | Yuan, Larry Xiaodi | Melbourne High School | South Yarra | Mathematical Methods | 45 |
| 18512 | Yuan, Larry Xiaodi | Melbourne High School | South Yarra | Specialist Mathematics | 43 |
| 18513 | Yuan, Luke | Penleigh and Essendon Grammar School | Keilor East | English | 46 |
| |
|||||
| 18514 | Yuan, Luke | Penleigh and Essendon Grammar School | Keilor East | Mathematical Methods | 43 |
| 18515 | Yuan, Luke | Penleigh and Essendon Grammar School | Keilor East | Chemistry | 42 |
| 18516 | Yuan, Luke | Penleigh and Essendon Grammar School | Keilor East | Specialist Mathematics | 41 |
| 18517 | Yuanjit, Mahlee Rose | Ballarat Clarendon College | Ballarat | Dance (VCE VET) | 42 |
| 18518 | Yudko, Davyd | Melbourne High School | South Yarra | Mathematical Methods | 41 |
| 18519 | Yuen, Skylar Wing Yan | McKinnon Secondary College | McKinnon | Biology | 42 |
| 18520 | Yuen, Skylar Wing Yan | McKinnon Secondary College | McKinnon | Mathematical Methods | 40 |
| 18521 | Yung, Kelly | Nossal High School | Berwick | Health and Human Development | 44 |
| 18522 | Yung, Kelly | Nossal High School | Berwick | Mathematical Methods | 43 |
| 18523 | Yung, Kelly | Nossal High School | Berwick | Chemistry | 40 |
| 18524 | Yung, Kelly | Nossal High School | Berwick | English | 40 |
| 18525 | Zaacks, Hila | McKinnon Secondary College | McKinnon | History: Revolutions | 45 |
| 18526 | Zaga, Zachary | Montmorency Secondary College | Montmorency | Physical Education | 50 |
| 18527 | Zagame, Emma Catherine | Loreto Mandeville Hall | Toorak | Geography | 44 |
| 18528 | Zagame, Emma Catherine | Loreto Mandeville Hall | Toorak | Physical Education | 42 |
| 18529 | Zagame, Emma Catherine | Loreto Mandeville Hall | Toorak | Art Creative Practice | 41 |
| 18530 | Zahedi, Sajida | Nossal High School | Berwick | Legal Studies | 46 |
| 18531 | Zahra, Jessica Jane | MacKillop Catholic Regional College | Werribee | English | 42 |
| 18532 | Zaibak, Sebastian Jesse | Templestowe College | Templestowe Lower | General Mathematics | 44 |
| 18533 | Zaibak, Spencer Elias | Blackburn High School | Blackburn | Mathematical Methods | 41 |
| 18534 | Zainalabdeen, Meena Firas | University High School | Parkville | Psychology | 44 |
| 18535 | Zaitsev, Yonatan | Casey Grammar School | Cranbourne East | English | 41 |
| 18536 | Zaki, Andrew | Salesian College Chadstone | Chadstone | General Mathematics | 44 |
| 18537 | Zaki, Andrew | Salesian College Chadstone | Chadstone | English | 40 |
| 18538 | Zakout, Aleena | Fountain Gate Secondary College | Narre Warren | Health (VCE VET) | 41 |
| 18539 | Zallmann, Emily | Mentone Grammar School | Mentone | Physical Education | 47 |
| 18540 | Zallmann, Emily | Mentone Grammar School | Mentone | Psychology | 47 |
| 18541 | Zallmann, Emily | Mentone Grammar School | Mentone | English | 40 |
| 18542 | Zammit, Jack Anthony | Eltham College of Education | Research | Legal Studies | 40 |
| 18543 | Zampaglione, Luca | Xavier College | Kew | Mathematical Methods | 42 |
| 18544 | Zamroad, Nadhrah | Glen Waverley Secondary College | Glen Waverley | Biology | 43 |
| 18545 | Zanders, Adam Kiel | Frankston High School | Frankston | General Mathematics | 40 |
| 18546 | Zanella, Max James | Marcellin College | Bulleen | Psychology | 42 |
| 18547 | Zaph, Charlotte Emily | Mordialloc College | Mordialloc | Health and Human Development | 46 |
| 18548 | Zaph, Charlotte Emily | Mordialloc College | Mordialloc | Media | 46 |
| 18549 | Zappia, Emily Joy | Loreto Mandeville Hall | Toorak | Geography | 41 |
| 18550 | Zappia, Laila Maree | St Josephs College Mildura | Mildura | Business Management | 46 |
| 18551 | Zappia, Laila Maree | St Josephs College Mildura | Mildura | Economics | 41 |
| 18552 | Zappone, Alessandro Max | St Kevins College | Toorak | Visual Communication Design | 45 |
| 18553 | Zappone, Alessandro Max | St Kevins College | Toorak | General Mathematics | 44 |