| 19919 | WU, Zhongjie | Caulfield Grammar School Caulfield | St Kilda East | Further Mathematics | 44 |
| 19920 | WU, Zixuan | Balwyn High School | Balwyn North | Mathematical Methods (CAS) | 40 |
| 19921 | WYATT, James Kenneth | Cohuna Secondary College | Cohuna | Further Mathematics | 41 |
| 19922 | WYATT, James Louis | Bayside Christian College | Langwarrin South | Physics | 40 |
| 19923 | WYLIE, Angus Armstrong | The Geelong College | Newtown | Physical Education | 45 |
| 19924 | WYLIE, Angus Armstrong | The Geelong College | Newtown | Physics | 41 |
| 19925 | WYLLIE, Jessica Anne | Ivanhoe Grammar School Ridgeway | Ivanhoe | Further Mathematics | 45 |
| 19926 | WYNEN, Sarah Jayne | Ballarat Clarendon College | Ballarat | Psychology | 44 |
| 19927 | WYNNE, Abbey Shona | Canterbury Girls Secondary College | Canterbury | Further Mathematics | 40 |
| 19928 | WYNNE, Rachel Louise | St Francis Xavier College | Beaconsfield | Health and Human Development | 40 |
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| 19929 | XAVIER, Nancy Rebekah | Casey Grammar School | Cranbourne East | Business Management | 45 |
| 19930 | XENOS, Athan | Caulfield Grammar School Caulfield | St Kilda East | Physics | 50 |
| 19931 | XENOS, Athan | Caulfield Grammar School Caulfield | St Kilda East | Specialist Mathematics | 47 |
| 19932 | XENOS, Athan | Caulfield Grammar School Caulfield | St Kilda East | Chemistry | 45 |
| 19933 | XENOS, Athan | Caulfield Grammar School Caulfield | St Kilda East | English | 41 |
| 19934 | XERRI, Benjamin John | Parade College | Bundoora | Further Mathematics | 42 |
| 19935 | XIA, Daniel | McKinnon Secondary College | McKinnon | English | 40 |
| 19936 | XIA, Stephen | John Monash Science School | Clayton | Mathematical Methods (CAS) | 43 |
| 19937 | XIA, Stephen | John Monash Science School | Clayton | Specialist Mathematics | 42 |
| 19938 | XIA, Tian Summer | Xin Jin Shan Chinese Language and Culture School | Mount Waverley | Languages: Chinese First Language | 40 |
| 19939 | XIA, Yuan Jing | Vermont Secondary College | Vermont | Further Mathematics | 45 |
| 19940 | XIANG, Xuaner Alice | Huntingtower School | Mount Waverley | English as an Additional Language | 43 |
| 19941 | XIANG, Xuaner Alice | Huntingtower School | Mount Waverley | Mathematical Methods (CAS) | 40 |
| 19942 | XIANG, Yuanze | McKinnon Secondary College | McKinnon | Mathematical Methods (CAS) | 43 |
| 19943 | XIANG, Yuanze | McKinnon Secondary College | McKinnon | Physics | 40 |
| 19944 | XIANG, Yuanze | McKinnon Secondary College | McKinnon | Specialist Mathematics | 40 |
| 19945 | XIAO, Daniel Chen | Scotch College | Hawthorn | Mathematical Methods (CAS) | 42 |
| 19946 | XIAO, Jiewen | Toorak College | Mount Eliza | Further Mathematics | 41 |
| 19947 | XIAO, Sabina Hui-Shan | Fintona Girls School | Balwyn | Accounting | 46 |
| 19948 | XIAO, Sabina Hui-Shan | Fintona Girls School | Balwyn | History: Revolutions | 42 |
| 19949 | XIAO, Wan Yi | Camberwell Girls Grammar School | Canterbury | Psychology | 42 |
| 19950 | XIAO, Yuting | Our Lady of Mercy College | Heidelberg | English | 43 |
| 19951 | XIAO, Yuting | Our Lady of Mercy College | Heidelberg | Media | 42 |
| 19952 | XIAO, Yuting | Our Lady of Mercy College | Heidelberg | Chemistry | 41 |
| 19953 | XIAO, Yuting | Our Lady of Mercy College | Heidelberg | Languages: French | 40 |
| 19954 | XIE, Bao Ying | Auburn High School | Hawthorn East | Languages: Chinese First Language | 42 |
| 19955 | XIE, Chencheng | Brighton Secondary College | Brighton East | Further Mathematics | 41 |
| 19956 | XIE, Cheng | John Monash Science School | Clayton | Chemistry | 50 |
| 19957 | XIE, Cheng | John Monash Science School | Clayton | Physics | 47 |
| 19958 | XIE, Cheng | John Monash Science School | Clayton | Specialist Mathematics | 43 |
| 19959 | XIE, Clement Ruo-Fan | Nossal High School | Berwick | Mathematical Methods (CAS) | 44 |
| 19960 | XIE, Diana | Presbyterian Ladies College | Burwood | Economics | 41 |
| 19961 | XIE, Edy | St Kevins College | Toorak | Mathematical Methods (CAS) | 42 |
| 19962 | XIE, Louisa | Vermont Secondary College | Vermont | English Language | 42 |
| 19963 | XIE, Shan Sam | Geelong Grammar School | Corio | Further Mathematics | 48 |
| 19964 | XIE, Shi Hui Sherry | Glen Waverley Secondary College | Glen Waverley | Languages: Chinese First Language | 40 |
| 19965 | XIE, Tianhe | Peninsula Grammar | Mount Eliza | Mathematical Methods (CAS) | 49 |
| 19966 | XIE, Tianhe | Peninsula Grammar | Mount Eliza | Physics | 47 |
| 19967 | XIE, Tianhe | Peninsula Grammar | Mount Eliza | English as an Additional Language | 45 |
| 19968 | XIE, Tianhe | Peninsula Grammar | Mount Eliza | History: Revolutions | 42 |