| 1101 | Yang, Qingchun | St Catherines School | Toorak | Mathematical Methods | 43 |
| 1102 | Yang, Wanpeng | Koonung Secondary College | Mont Albert North | Mathematical Methods | 47 |
| 1103 | Yang, Yunjie | McKinnon Secondary College | McKinnon | Mathematical Methods | 41 |
| 1104 | Yang, Zining | Balwyn High School | Balwyn North | Mathematical Methods | 42 |
| 1105 | Yao, Jiahang | Xavier College | Kew | Mathematical Methods | 47 |
| 1106 | Ye, Audrey | Korowa Anglican Girls School | Glen Iris | Mathematical Methods | 46 |
| 1107 | Ye, Eric Ruihan | Melbourne Grammar School | Melbourne | Mathematical Methods | 41 |
| 1108 | Yelland, Sophie Elizabeth | Hazel Glen College | Doreen | Mathematical Methods | 41 |
| 1109 | Yellap, Arjun | Scotch College | Hawthorn | Mathematical Methods | 47 |
| 1110 | Yin, Englim | Wellington Secondary College | Mulgrave | Mathematical Methods | 41 |
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| 1111 | Yong, Imogen Yee-Ming | Haileybury Girls College | Keysborough | Mathematical Methods | 40 |
| 1112 | Young, Patrick Connor | Richmond High School | Richmond | Mathematical Methods | 41 |
| 1113 | Yu, Xiaochen | Glen Waverley Secondary College | Glen Waverley | Mathematical Methods | 40 |
| 1114 | Yu, Zhiyao | Haileybury Chengdu Shude High School | Chengdu, China | Mathematical Methods | 40 |
| 1115 | Yu, Zihan | Caulfield Grammar School Wheelers Hill | Wheelers Hill | Mathematical Methods | 41 |
| 1116 | Yuan, Minhao | Overnewton Anglican College | Keilor | Mathematical Methods | 45 |
| 1117 | Yung, Hiu Lok | East Doncaster Secondary College | Doncaster East | Mathematical Methods | 43 |
| 1118 | Zafiris, Chris | Trinity Grammar School | Kew | Mathematical Methods | 40 |
| 1119 | Zahedi, Sajida | Nossal High School | Berwick | Mathematical Methods | 43 |
| 1120 | Zappulla, Amelie Anne | Presbyterian Ladies College | Burwood | Mathematical Methods | 44 |
| 1121 | Zhai, Kanghua | Glen Eira College | Caulfield East | Mathematical Methods | 40 |
| 1122 | Zhan, Bangyue | Camberwell High School | Canterbury | Mathematical Methods | 48 |
| 1123 | Zhan, Lishan | Westbourne Grammar School | Truganina | Mathematical Methods | 45 |
| 1124 | Zhan, Zerui | Camberwell Grammar School | Canterbury | Mathematical Methods | 40 |
| 1125 | Zhang, Aaron Erkai | Melbourne High School | South Yarra | Mathematical Methods | 48 |
| 1126 | Zhang, Andison | Melbourne Grammar School | Melbourne | Mathematical Methods | 49 |
| 1127 | Zhang, Andrew Gabriel | Trinity Grammar School | Kew | Mathematical Methods | 48 |
| 1128 | Zhang, Aojie | Peninsula Grammar Pudong Foreign Language School | Shanghai, China | Mathematical Methods | 40 |
| 1129 | Zhang, Chenkai | Caulfield Grammar School Wheelers Hill | Wheelers Hill | Mathematical Methods | 42 |
| 1130 | Zhang, Chuxin | McKinnon Secondary College | McKinnon | Mathematical Methods | 40 |
| 1131 | Zhang, Chuyi | Camberwell Girls Grammar School | Canterbury | Mathematical Methods | 41 |
| 1132 | Zhang, Dongjian Leo | Melbourne High School | South Yarra | Mathematical Methods | 40 |
| 1133 | Zhang, Fonjer | McKinnon Secondary College | McKinnon | Mathematical Methods | 42 |
| 1134 | Zhang, Isabel | Melbourne Girls Grammar | South Yarra | Mathematical Methods | 49 |
| 1135 | Zhang, Ivan Yinghao | Camberwell Grammar School | Canterbury | Mathematical Methods | 45 |
| 1136 | Zhang, Ivy | Penleigh and Essendon Grammar School | Keilor East | Mathematical Methods | 44 |
| 1137 | Zhang, Jingkai | Westbourne Grammar School | Truganina | Mathematical Methods | 45 |
| 1138 | Zhang, Junya | Huntingtower School | Mount Waverley | Mathematical Methods | 41 |
| 1139 | Zhang, Lucia Peici | Donvale Christian College | Donvale | Mathematical Methods | 40 |
| 1140 | Zhang, Nga Ki Angela | Korowa Anglican Girls School | Glen Iris | Mathematical Methods | 42 |
| 1141 | Zhang, Ren | Trinity Grammar School | Kew | Mathematical Methods | 43 |
| 1142 | Zhang, Ryan | Haileybury College | Keysborough | Mathematical Methods | 41 |
| 1143 | Zhang, Siyang | Haileybury Girls College | Keysborough | Mathematical Methods | 44 |
| 1144 | Zhang, Ting Alex | Camberwell Grammar School | Canterbury | Mathematical Methods | 40 |
| 1145 | Zhang, Wei | Peninsula Grammar Heze No 1 Middle School | Shandong, China | Mathematical Methods | 42 |
| 1146 | Zhang, Xinxin | Haileybury Girls College | Keysborough | Mathematical Methods | 45 |
| 1147 | Zhang, Xuan | Penleigh and Essendon Grammar School | Keilor East | Mathematical Methods | 41 |
| 1148 | Zhang, Yitong | Victorian College of the Arts Secondary School | Southbank | Mathematical Methods | 43 |
| 1149 | Zhang, Yuwei | St Margarets Berwick Grammar Berwick Campus | Berwick | Mathematical Methods | 45 |
| 1150 | Zhang, Zihan | Camberwell Girls Grammar School | Canterbury | Mathematical Methods | 45 |