| 18804 | Zhu, Youyou | Toorak College | Mount Eliza | English | 42 |
| 18805 | Zhuang, Jiayun | Peninsula Grammar Pudong Foreign Language School | Shanghai, China | Languages: Chinese First Language | 41 |
| 18806 | Zhuang, Jiayun | Peninsula Grammar Pudong Foreign Language School | Shanghai, China | Physics | 41 |
| 18807 | Zhuang, Jiayun | Peninsula Grammar Pudong Foreign Language School | Shanghai, China | Mathematical Methods | 40 |
| 18808 | Zhuo, Jun Ming | Northcote High School | Northcote | Mathematical Methods | 42 |
| 18809 | Zianamini, Seyedarvin | Victorian School of Languages | Thornbury | Languages: Persian | 44 |
| 18810 | Ziaras, Celeste | Haileybury Girls College | Keysborough | Legal Studies | 46 |
| 18811 | Zidek, Ava Nicola | Mater Christi College | Belgrave | Business Management | 41 |
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| 18812 | Zidek, Ava Nicola | Mater Christi College | Belgrave | General Mathematics | 41 |
| 18813 | Ziegelaar, Danielle Lauren | Penleigh and Essendon Grammar School | Keilor East | English | 42 |
| 18814 | Zielak, Sammer Montana | Flinders Christian Community College Carrum Downs | Carrum Downs | Legal Studies | 40 |
| 18815 | Zillmann, Shawn Herbert | Melbourne High School | South Yarra | General Mathematics | 43 |
| 18816 | Zimmer, Eve | Frankston High School | Frankston | English | 42 |
| 18817 | Zimmerman, Maya Olivia | St Leonards College | Brighton East | Outdoor and Environmental Studies | 43 |
| 18818 | Zimmerman, Maya Olivia | St Leonards College | Brighton East | English | 41 |
| 18819 | Zissimou, Katerina Irene | MacRobertson Girls High School | Melbourne | Media | 47 |
| 18820 | Zissimou, Katerina Irene | MacRobertson Girls High School | Melbourne | English | 42 |
| 18821 | Zmak, Ivan Hendrik | Hume Anglican Grammar | Mickleham | General Mathematics | 44 |
| 18822 | Zmegac, Zelie Therese | Mount Lilydale Mercy College | Lilydale | Business Management | 43 |
| 18823 | Zodo, Gabrielle | Kambrya College | Berwick | Specialist Mathematics | 48 |
| 18824 | Zodo, Gabrielle | Kambrya College | Berwick | Mathematical Methods | 47 |
| 18825 | Zodo, Gabrielle | Kambrya College | Berwick | Chemistry | 45 |
| 18826 | Zodo, Gabrielle | Kambrya College | Berwick | Physics | 45 |
| 18827 | Zohar, Monique | Bialik College | Hawthorn | English | 40 |
| 18828 | Zou, Alice | Lowther Hall Anglican Grammar School | Essendon | Art Creative Practice | 45 |
| 18829 | Zou, Alice | Lowther Hall Anglican Grammar School | Essendon | English | 43 |
| 18830 | Zou, Alice | Lowther Hall Anglican Grammar School | Essendon | Chemistry | 42 |
| 18831 | Zou, Daniel Li-Tao | Scotch College | Hawthorn | Chemistry | 41 |
| 18832 | Zou, Daniel Li-Tao | Scotch College | Hawthorn | Specialist Mathematics | 40 |
| 18833 | Zou, Ella Tian Yue | Xin Jin Shan Chinese Language and Culture School | Mount Waverley | Languages: Chinese Culture and Society | 44 |
| 18834 | Zou, Oliver Kunyan | Huntingtower School | Mount Waverley | Biology | 45 |
| 18835 | Zou, Oliver Kunyan | Huntingtower School | Mount Waverley | Chemistry | 42 |
| 18836 | Zou, Oliver Kunyan | Huntingtower School | Mount Waverley | English | 42 |
| 18837 | Zsigmond, Clayton Tony | Patterson River Secondary College | Seaford | Systems Engineering | 40 |
| 18838 | Zuccarelli, Evelyn | Ave Maria College | Aberfeldie | General Mathematics | 41 |
| 18839 | Zulkarnain, Zareef | John Monash Science School | Clayton | Physics | 45 |
| 18840 | Zulkarnain, Zareef | John Monash Science School | Clayton | English | 43 |
| 18841 | Zulkarnain, Zareef | John Monash Science School | Clayton | Specialist Mathematics | 41 |
| 18842 | Zumpe, Saffron Lily | Kardinia International College | Bell Post Hill | Australian History | 45 |
| 18843 | Zurzolo, Giovanna Francesca | Kurunjang Secondary College | Melton | English | 49 |
| 18844 | Zurzolo, Giovanna Francesca | Kurunjang Secondary College | Melton | Australian History | 48 |
| 18845 | Zurzolo, Giovanna Francesca | Kurunjang Secondary College | Melton | Psychology | 41 |
| 18846 | Zvirbulis, Poppy | Frankston High School | Frankston | Sport and Recreation (VCE VET) | 42 |
| 18847 | Zylberman, Amelia Mikhailova | Haileybury Girls College | Keysborough | History: Revolutions | 41 |