| 1051 | Wyatt, Elizabeth | Penleigh and Essendon Grammar School | Keilor East | Mathematical Methods | 46 |
| 1052 | Xia, Bing | Taylors College | Melbourne | Mathematical Methods | 44 |
| 1053 | Xiao, Di | The Geelong College | Newtown | Mathematical Methods | 42 |
| 1054 | Xie, Su Ying | MacRobertson Girls High School | Melbourne | Mathematical Methods | 40 |
| 1055 | Xu, Angela | Wellington Secondary College | Mulgrave | Mathematical Methods | 40 |
| 1056 | Xu, Bowei | Mount Waverley Secondary College | Mount Waverley | Mathematical Methods | 43 |
| 1057 | Xu, Feiying | Ivanhoe Girls Grammar School | Ivanhoe | Mathematical Methods | 43 |
| 1058 | Xu, Jiao | Firbank Grammar School | Brighton | Mathematical Methods | 41 |
| 1059 | Xu, Jimmy | Balwyn High School | Balwyn North | Mathematical Methods | 43 |
| 1060 | Xu, Man | St Aloysius College | North Melbourne | Mathematical Methods | 42 |
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| 1061 | Xu, Xiaofeng | Haileybury Li Hui High School | China | Mathematical Methods | 40 |
| 1062 | Xu, Yixiang | Ivanhoe Grammar School Ridgeway | Ivanhoe | Mathematical Methods | 45 |
| 1063 | Xu, Ze Kun | Kardinia International College | Bell Post Hill | Mathematical Methods | 50 |
| 1064 | Yam, Nigel | Doncaster Secondary College | Doncaster | Mathematical Methods | 42 |
| 1065 | Yan, Hao Cheng | Trinity Grammar School | Kew | Mathematical Methods | 45 |
| 1066 | Yan, Jennifer | Firbank Grammar School | Brighton | Mathematical Methods | 43 |
| 1067 | Yan, Run | Melbourne High School | South Yarra | Mathematical Methods | 40 |
| 1068 | Yan, Shi | Whitefriars College | Donvale | Mathematical Methods | 42 |
| 1069 | Yang, Di | Balwyn High School | Balwyn North | Mathematical Methods | 40 |
| 1070 | Yang, Katherine | Firbank Grammar School | Brighton | Mathematical Methods | 45 |
| 1071 | Yang, Reina | Melbourne Girls Grammar | South Yarra | Mathematical Methods | 47 |
| 1072 | Yang, Vin-Lin | Santa Maria College | Northcote | Mathematical Methods | 40 |
| 1073 | Yang, Xiao Yun | Toorak College | Mount Eliza | Mathematical Methods | 43 |
| 1074 | Yang, Xue | Balwyn High School | Balwyn North | Mathematical Methods | 44 |
| 1075 | Yang, Yu-Hsiang | The Geelong College | Newtown | Mathematical Methods | 41 |
| 1076 | Yao, Jack | Melbourne High School | South Yarra | Mathematical Methods | 40 |
| 1077 | Yao, Jin Ge | Brighton Grammar School | Brighton | Mathematical Methods | 43 |
| 1078 | Yap, Jonathan | Melbourne High School | South Yarra | Mathematical Methods | 42 |
| 1079 | Yap, Jonathan | Camberwell Grammar School | Canterbury | Mathematical Methods | 40 |
| 1080 | Yeap, Chuan Jun | Scotch College | Hawthorn | Mathematical Methods | 45 |
| 1081 | Yee, Rachel | Presbyterian Ladies College | Burwood | Mathematical Methods | 41 |
| 1082 | Yeoh, Joyce | Camberwell Girls Grammar School | Canterbury | Mathematical Methods | 47 |
| 1083 | Yeung, Matthew | Balwyn High School | Balwyn North | Mathematical Methods | 49 |
| 1084 | Yii, Michelle | Presbyterian Ladies College | Burwood | Mathematical Methods | 46 |
| 1085 | Yilmaz, Merve | Strathmore Secondary College | Strathmore | Mathematical Methods | 40 |
| 1086 | Yin, Ya Meng | Frankston High School | Frankston | Mathematical Methods | 46 |
| 1087 | Ying, Kun | Balwyn High School | Balwyn North | Mathematical Methods | 43 |
| 1088 | Yip, Sing Wang | Melbourne High School | South Yarra | Mathematical Methods | 40 |
| 1089 | Yiu, Christopher | Huntingtower School | Mount Waverley | Mathematical Methods | 47 |
| 1090 | Yiu, Victor | Melbourne High School | South Yarra | Mathematical Methods | 40 |
| 1091 | Yong, Yee- Len | Blackburn High School | Blackburn | Mathematical Methods | 41 |
| 1092 | Yoo, Soo | Methodist Ladies College | Kew | Mathematical Methods | 42 |
| 1093 | Yoon, Christopher | Wesley College Glen Waverley | Glen Waverley | Mathematical Methods | 44 |
| 1094 | Yoon, Joa | Wesley College Glen Waverley | Glen Waverley | Mathematical Methods | 40 |
| 1095 | York, Bradley | St Pauls Anglican Grammar School | Warragul | Mathematical Methods | 40 |
| 1096 | Young, Tessa | Fintona Girls School | Balwyn | Mathematical Methods | 40 |
| 1097 | Youssef, Janet | Santa Maria College | Northcote | Mathematical Methods | 40 |
| 1098 | Youssef, Matthew | Mazenod College | Mulgrave | Mathematical Methods | 41 |
| 1099 | Yu, Ling Chen | Holmesglen Institute of TAFE Moorabbin | Moorabbin | Mathematical Methods | 41 |
| 1100 | Yuan, Sheng Jia | Balwyn High School | Balwyn North | Mathematical Methods | 43 |