| 1201 | ZHU, Cory Yunzhe | Ringwood Secondary College | Ringwood | Mathematical Methods (CAS) | 44 |
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| 1202 | ZHU, Vincent Yuchen | Camberwell Grammar School | Canterbury | Mathematical Methods (CAS) | 41 |
| 1203 | ZHU, Xingyang | Buckley Park College | Essendon | Mathematical Methods (CAS) | 41 |
| 1204 | ZHU, Xuanyan | Peninsula Grammar Nanjing Foreign Language School | Nanjing, China | Mathematical Methods (CAS) | 41 |
| 1205 | ZHUANG, Yuan-Jessica | Methodist Ladies College | Kew | Mathematical Methods (CAS) | 44 |
| 1206 | ZOGRAPHOS, George Alexander | Melbourne Grammar School | Melbourne | Mathematical Methods (CAS) | 41 |
| 1207 | ZUBCIC, Luka Caramia | Penleigh and Essendon Grammar School | Keilor East | Mathematical Methods (CAS) | 45 |
| 1208 | ZUCKERBERG, Aaron N | Yesodei Hatorah College Secondary Campus | Ormond | Mathematical Methods (CAS) | 43 |
| 1209 | ZUPAN, Marcus | Xavier College | Kew | Mathematical Methods (CAS) | 42 |