| 551 | Yang, Siwei | Haileybury Chengdu Shude High School | Chengdu, China | Physics | 44 |
| 552 | Yang, Tim | Trinity Grammar School | Kew | Physics | 44 |
| 553 | Yao, Jia Cheng | University High School | Parkville | Physics | 44 |
| 554 | Yaqubi, Zobair | Hallam Secondary College | Hallam | Physics | 43 |
| 555 | Ye, Gui Jun | Melbourne High School | South Yarra | Physics | 42 |
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| 556 | Ye, Karena | Methodist Ladies College | Kew | Physics | 43 |
| 557 | Ye, Young | Caulfield Grammar School Caulfield | St Kilda East | Physics | 45 |
| 558 | Yeo, Samuel | John Monash Science School | Clayton | Physics | 40 |
| 559 | Yin, Jin Lei | Haileybury Jiangyan No 2 High School | Jiangyan, China | Physics | 42 |
| 560 | Yoannidis, Stephen | Trinity Grammar School | Kew | Physics | 43 |
| 561 | Yong, Jaynen | Mount Lilydale Mercy College | Lilydale | Physics | 42 |
| 562 | Yong, Yuanqi | Balwyn High School | Balwyn North | Physics | 42 |
| 563 | Young, William | Balwyn High School | Balwyn North | Physics | 46 |
| 564 | Yuan, Jiasheng | Yarra Valley Grammar School | Ringwood | Physics | 44 |
| 565 | Zachest, Jarrod | Camberwell High School | Canterbury | Physics | 40 |
| 566 | Zemdegs, Feliks | St Kevins College | Toorak | Physics | 45 |
| 567 | Zeng, Stephanie | MacRobertson Girls High School | Melbourne | Physics | 44 |
| 568 | Zhan, Michael | Scotch College | Hawthorn | Physics | 49 |
| 569 | Zhang, Danny | Melbourne High School | South Yarra | Physics | 44 |
| 570 | Zhang, Tracy | Presbyterian Ladies College | Burwood | Physics | 40 |
| 571 | Zhang, Yichi | Haileybury Chengdu Shude High School | Chengdu, China | Physics | 43 |
| 572 | Zhao, Hui | Melbourne Senior Secondary College | Melbourne | Physics | 40 |
| 573 | Zhao, Yifan | Camberwell Grammar School | Canterbury | Physics | 40 |
| 574 | Zheng, Yaqiong | Kew High School | Kew East | Physics | 40 |
| 575 | Zhou, Michael | University High School | Parkville | Physics | 50 |
| 576 | Zhu, Jeffrey | Balwyn High School | Balwyn North | Physics | 50 |
| 577 | Zou, Leonard | Melbourne High School | South Yarra | Physics | 40 |
| 578 | Zou, Roger | Huntingtower School | Mount Waverley | Physics | 49 |
| 579 | Zuo, Roger | Balwyn High School | Balwyn North | Physics | 42 |
Last Updated: 18 May 2023