| 20169 | YI, Yuqing Mercury | Alphington Grammar School | Alphington | English as an Additional Language | 42 |
| 20170 | YI, Yuqing Mercury | Alphington Grammar School | Alphington | Mathematical Methods (CAS) | 40 |
| 20171 | YIAPPOS, Ioanna | Genazzano F.C.J. College | Kew | English | 40 |
| 20172 | YIAPPOS, Yiorgios Aggelos | Xavier College | Kew | English | 48 |
| 20173 | YIGIT, Aylin | Ave Maria College | Aberfeldie | Business Management | 40 |
| 20174 | YII, Daniel Sii Yi | Melbourne High School | South Yarra | Business Management | 50 |
| 20175 | YII, Erwin Yan-Liang | Camberwell Grammar School | Canterbury | Mathematical Methods (CAS) | 42 |
| 20176 | YII, Matthew Min | Xavier College | Kew | English | 49 |
| 20177 | YII, Matthew Min | Xavier College | Kew | Physics | 49 |
| 20178 | YII, Matthew Min | Xavier College | Kew | Specialist Mathematics | 43 |
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| 20179 | YII, Matthew Min | Xavier College | Kew | Chemistry | 41 |
| 20180 | YIM, Ho Ka Lesley | Glen Waverley Secondary College | Glen Waverley | Music Performance | 47 |
| 20181 | YIM, Ho Ka Lesley | Glen Waverley Secondary College | Glen Waverley | Food and Technology | 43 |
| 20182 | YIM, Marcus Gabriel Ka-Weng | Balwyn High School | Balwyn North | Legal Studies | 41 |
| 20183 | YIN, Aaron | University High School | Parkville | Biology | 43 |
| 20184 | YING, Qinbei Bella | Glen Waverley Secondary College | Glen Waverley | Languages: Chinese First Language | 42 |
| 20185 | YIP, Jeremy Yue Leon | Trinity Grammar School | Kew | Mathematical Methods (CAS) | 50 |
| 20186 | YIP, Jeremy Yue Leon | Trinity Grammar School | Kew | Physics | 50 |
| 20187 | YIP, Julian | Glen Waverley Secondary College | Glen Waverley | Further Mathematics | 43 |
| 20188 | YIP, Melissa | Glen Waverley Secondary College | Glen Waverley | Further Mathematics | 45 |
| 20189 | YIP, Melissa | Glen Waverley Secondary College | Glen Waverley | Accounting | 42 |
| 20190 | YIP, Melissa | Glen Waverley Secondary College | Glen Waverley | English as an Additional Language | 42 |
| 20191 | YIP, Sui Wah Sean | Melbourne High School | South Yarra | Biology | 41 |
| 20192 | YIP, Sui Wah Sean | Xin Jin Shan Chinese Language and Culture School | Mount Waverley | Languages: Chinese Second Language | 41 |
| 20193 | YIP, Tze Hang | The Geelong College | Newtown | Further Mathematics | 41 |
| 20194 | YIU, Kevin | Keilor Downs College | Keilor Downs | Physics | 41 |
| 20195 | YIU, Kevin | Keilor Downs College | Keilor Downs | Specialist Mathematics | 41 |
| 20196 | YIU, Kevin | Keilor Downs College | Keilor Downs | Chemistry | 40 |
| 20197 | YODGEE, Tyler Trudy | Our Lady of Mercy College | Heidelberg | Physical Education | 41 |
| 20198 | YOKOYAMA, Alicia Misa | Firbank Grammar School | Brighton | Business Management | 48 |
| 20199 | YOKOYAMA, Mikitake | Camberwell Grammar School | Canterbury | Specialist Mathematics | 45 |
| 20200 | YOKOYAMA, Mikitake | Victorian School of Languages | Thornbury | Languages: Japanese Second Language | 44 |
| 20201 | YOKOYAMA, Mikitake | Camberwell Grammar School | Canterbury | Economics | 40 |
| 20202 | YONG, Evangeline | MacRobertson Girls High School | Melbourne | Psychology | 49 |
| 20203 | YONG, Evangeline | MacRobertson Girls High School | Melbourne | Legal Studies | 46 |
| 20204 | YONG, Gabriel Wu Xiang | Waverley Christian College Wantirna South | Wantirna South | Mathematical Methods (CAS) | 47 |
| 20205 | YONG, Gabriel Wu Xiang | Waverley Christian College Wantirna South | Wantirna South | Physics | 42 |
| 20206 | YONG, Gabriel Wu Xiang | Waverley Christian College Wantirna South | Wantirna South | English as an Additional Language | 40 |
| 20207 | YONG, Lucas James | Ivanhoe Grammar School Ridgeway | Ivanhoe | Mathematical Methods (CAS) | 47 |
| 20208 | YOO, Nancy Hwanhee | Suzanne Cory High School | Werribee | Business Management | 42 |
| 20209 | YOON, Blair In-Wook | Waverley Christian College Wantirna South | Wantirna South | Further Mathematics | 41 |
| 20210 | YORK, Indigo Newnham | Distance Education Centre Victoria | Thornbury | Classical Studies | 41 |
| 20211 | YORK, Indigo Newnham | University High School | Parkville | Further Mathematics | 41 |
| 20212 | YORK, Indigo Newnham | University High School | Parkville | Global Politics | 41 |
| 20213 | YOSESKI, Brigitte Chantel | Westbourne Grammar School | Truganina | Studio Arts | 40 |
| 20214 | YOU, Hui | Peninsula Grammar Nanjing Foreign Language School | Nanjing, China | Further Mathematics | 43 |
| 20215 | YOUAKIM, Amanda | Heatherton Christian College | Clarinda | English | 46 |
| 20216 | YOUAKIM, Amanda | Heatherton Christian College | Clarinda | History: Revolutions | 41 |
| 20217 | YOUN, Alexandra Pisei | McKinnon Secondary College | McKinnon | Further Mathematics | 42 |
| 20218 | YOUN, Sangwon | Korean Language School of Melbourne | Prahran | Languages: Korean Second Language | 40 |