| 2012 | Cabai, Xavier Aurelio Lorenzo | Marcellin College | Bulleen | Physical Education | 40 |
| 2013 | Cabanayan, Janeca Kyle | St Columbas College | Essendon | Media | 47 |
| 2014 | Cabanayan, Janeca Kyle | St Columbas College | Essendon | English | 43 |
| 2015 | Cabandong, Jaiden Anne | Pascoe Vale Girls Secondary College | Pascoe Vale | English | 41 |
| 2016 | Cabandong, Jaiden Anne | Pascoe Vale Girls Secondary College | Pascoe Vale | History: Revolutions | 40 |
| 2017 | Cabansag, Tara | Santa Maria College | Northcote | Health and Human Development | 43 |
| 2018 | Cadee, Aleisha | Ivanhoe Girls Grammar School | Ivanhoe | Business Management | 47 |
| 2019 | Cafari, Giulia Antonia | Penleigh and Essendon Grammar School | Keilor East | Accounting | 40 |
| 2020 | Cafari, Giulia Antonia | Penleigh and Essendon Grammar School | Keilor East | Further Mathematics | 40 |
| 2021 | Caffry, Mia | Loreto Mandeville Hall | Toorak | Geography | 41 |
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| 2022 | Caffyn, Emily Jane | Methodist Ladies College | Kew | Business Management | 47 |
| 2023 | Cai, Dihong | McKinnon Secondary College | McKinnon | Economics | 40 |
| 2024 | Cai, Lewei | Melbourne High School | South Yarra | Chemistry | 50 |
| 2025 | Cai, Lewei | Melbourne High School | South Yarra | Physics | 50 |
| 2026 | Cai, Lewei | Melbourne High School | South Yarra | English Language | 48 |
| 2027 | Cai, Lewei | Melbourne High School | South Yarra | Mathematical Methods | 48 |
| 2028 | Cai, Lewei | Melbourne High School | South Yarra | Specialist Mathematics | 45 |
| 2029 | Cai, Michelle | University High School | Parkville | Business Management | 45 |
| 2030 | Cai, Michelle | University High School | Parkville | Legal Studies | 43 |
| 2031 | Cai, Michelle | University High School | Parkville | English | 42 |
| 2032 | Cai, Nissi Yishi | Frankston High School | Frankston | Further Mathematics | 44 |
| 2033 | Cai, Nissi Yishi | Frankston High School | Frankston | Psychology | 42 |
| 2034 | Cai, Sennan | Kambrya College | Berwick | Further Mathematics | 45 |
| 2035 | Cai, Sennan | Kambrya College | Berwick | Mathematical Methods | 44 |
| 2036 | Cai, Sennan | Kambrya College | Berwick | Physics | 44 |
| 2037 | Cai, Sennan | Kambrya College | Berwick | Specialist Mathematics | 41 |
| 2038 | Cai, Shangjin | Balwyn High School | Balwyn North | Business Management | 43 |
| 2039 | Cai, Shangjin | Balwyn High School | Balwyn North | English as an Additional Language | 41 |
| 2040 | Cai, Victor | St Margarets Berwick Grammar Officer Campus | Officer | Mathematical Methods | 42 |
| 2041 | Cai, Yijun | Toorak College | Mount Eliza | Languages: Chinese First Language | 45 |
| 2042 | Cai, Yonglian | Westbourne Grammar School | Truganina | Specialist Mathematics | 49 |
| 2043 | Cai, Yonglian | Westbourne Grammar School | Truganina | Mathematical Methods | 48 |
| 2044 | Cai, Yonglian | Westbourne Grammar School | Truganina | Chemistry | 44 |
| 2045 | Cai, Yonglian | Westbourne Grammar School | Truganina | Physics | 44 |
| 2046 | Caia, Aleesha | Strathmore Secondary College | Strathmore | English | 41 |
| 2047 | Cain, Ashley Hugh | Emmaus College | Vermont South | Systems Engineering | 42 |
| 2048 | Cain, Lucasta Mercy Read | Siena College | Camberwell | Psychology | 44 |
| 2049 | Caine, Daniel Mitchell | Koonung Secondary College | Mont Albert North | Physical Education | 45 |
| 2050 | Caine, Daniel Mitchell | Koonung Secondary College | Mont Albert North | Environmental Science | 44 |
| 2051 | Caine, Daniel Mitchell | Koonung Secondary College | Mont Albert North | English | 40 |
| 2052 | Cairney, Alexandra Maree | Salesian College Sunbury | Sunbury | Food Studies | 41 |
| 2053 | Cairney, Alexandra Maree | Salesian College Sunbury | Sunbury | Studio Arts | 41 |
| 2054 | Cairns, Brayden | St Margarets Berwick Grammar Officer Campus | Officer | Business Management | 43 |
| 2055 | Cairns, Ryley Christopher | Haileybury College | Keysborough | English | 40 |
| 2056 | Caithness, Lily | Mary MacKillop Catholic College | Leongatha | Health and Human Development | 41 |
| 2057 | Cakmakcioglu, Arman Andreas | Camberwell Grammar School | Canterbury | English | 45 |
| 2058 | Cakmakcioglu, Arman Andreas | Camberwell Grammar School | Canterbury | Music Performance | 45 |
| 2059 | Cakmar, Laurence Pierre | John Monash Science School | Clayton | Mathematical Methods | 46 |
| 2060 | Cakmar, Laurence Pierre | John Monash Science School | Clayton | Chemistry | 41 |
| 2061 | Calderwood, Alice May | Berwick Secondary College | Berwick | Business Management | 40 |