| 201 | Dao, May | Keilor Downs College | Keilor Downs | Mathematical Methods | 40 |
| 202 | Dassios, Athanasia | McKinnon Secondary College | McKinnon | Mathematical Methods | 40 |
| 203 | Davenport-Pilling, Harvey Philip | Northcote High School | Northcote | Mathematical Methods | 42 |
| 204 | Davies, Elliot Joel | Glen Eira College | Caulfield East | Mathematical Methods | 43 |
| 205 | Davis, Amelie Silke Gulde | Mentone Grammar School | Mentone | Mathematical Methods | 40 |
| 206 | Davis, Rory | Caulfield Grammar School Caulfield | St Kilda East | Mathematical Methods | 40 |
| 207 | Davis, Thomas John | St Bedes College | Mentone | Mathematical Methods | 47 |
| 208 | Day, Joshua Matthew Everest | Camberwell Grammar School | Canterbury | Mathematical Methods | 44 |
| 209 | Day, Richard | Mount Scopus Memorial College | Burwood | Mathematical Methods | 42 |
| 210 | Daymen, Deniz | St Albans Secondary College | St Albans | Mathematical Methods | 48 |
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| 211 | De Alwis, Ranusha Earl Sashmitha | St Kevins College | Toorak | Mathematical Methods | 44 |
| 212 | De Antonis, Lily | Lowther Hall Anglican Grammar School | Essendon | Mathematical Methods | 40 |
| 213 | De Brouwer, Oscar Florian | St Michaels Grammar School | St Kilda | Mathematical Methods | 44 |
| 214 | De, Spandan Kumar | Haileybury College | Keysborough | Mathematical Methods | 46 |
| 215 | Dean, Emily Elsie | Melbourne Girls College | Richmond | Mathematical Methods | 41 |
| 216 | Dean, Hamish Gordon | Ballarat Clarendon College | Ballarat | Mathematical Methods | 45 |
| 217 | Deepak, Meenakshi | MacRobertson Girls High School | Melbourne | Mathematical Methods | 42 |
| 218 | Deex, William James | Flinders Christian Community College Carrum Downs | Carrum Downs | Mathematical Methods | 41 |
| 219 | Deeyagaha Waduge, Aarya Sahas Sankalpa | Nossal High School | Berwick | Mathematical Methods | 47 |
| 220 | Degen, James Jack | Bialik College | Hawthorn | Mathematical Methods | 41 |
| 221 | Demosthenous, Georgi | John Monash Science School | Clayton | Mathematical Methods | 46 |
| 222 | Demunck, Max Kai Xiang | Vermont Secondary College | Vermont | Mathematical Methods | 43 |
| 223 | Dermitzakis, Jordi | Salesian College Chadstone | Chadstone | Mathematical Methods | 42 |
| 224 | Desouza, Andres | The Knox School | Wantirna South | Mathematical Methods | 40 |
| 225 | Dexter, Riley Jay Coleman | University High School | Parkville | Mathematical Methods | 42 |
| 226 | Di Giovine, Roberto Salvatore | Mazenod College | Mulgrave | Mathematical Methods | 45 |
| 227 | Di Luca, Marcus Daniel | Penleigh and Essendon Grammar School | Keilor East | Mathematical Methods | 45 |
| 228 | Dias, Roland Salvador | Melbourne High School | South Yarra | Mathematical Methods | 46 |
| 229 | Diep, Andy | St Albans Secondary College | St Albans | Mathematical Methods | 41 |
| 230 | Ding, Xiaoyi | MacRobertson Girls High School | Melbourne | Mathematical Methods | 42 |
| 231 | Ditchburn, James Harrison | Penleigh and Essendon Grammar School | Keilor East | Mathematical Methods | 40 |
| 232 | Dixon, James Leigh | Padua College | Mornington | Mathematical Methods | 46 |
| 233 | Do, Anh Khoa | Kardinia International College | Bell Post Hill | Mathematical Methods | 40 |
| 234 | Do, Victoria Khanh Linh | MacRobertson Girls High School | Melbourne | Mathematical Methods | 46 |
| 235 | Do, Winston Khang Hoang Ngo | Haileybury College | Keysborough | Mathematical Methods | 43 |
| 236 | Doan, Audrey | Presbyterian Ladies College | Burwood | Mathematical Methods | 49 |
| 237 | Doan, Gia Hung | Wellington Secondary College | Mulgrave | Mathematical Methods | 41 |
| 238 | Dong, Sam Genshin | Glen Waverley Secondary College | Glen Waverley | Mathematical Methods | 43 |
| 239 | Dong, Vincent Vi Tuan | St Bernards College | Essendon | Mathematical Methods | 43 |
| 240 | Donnellan, Liam Martin | Haileybury College | Keysborough | Mathematical Methods | 45 |
| 241 | Doshi, Neil | Scotch College | Hawthorn | Mathematical Methods | 50 |
| 242 | Du, Haitao | Haileybury Wuhan Foreign Language School | Wuhan, China | Mathematical Methods | 41 |
| 243 | Du, Kehui | Presbyterian Ladies College | Burwood | Mathematical Methods | 41 |
| 244 | Du, Yuying | Peninsula Grammar Heze No 1 Middle School | Shandong, China | Mathematical Methods | 40 |
| 245 | Duan, Lucas | Trinity Grammar School | Kew | Mathematical Methods | 42 |
| 246 | Duffin, Tianna Emily | Our Lady of Sion College | Box Hill | Mathematical Methods | 46 |
| 247 | Duke, Eva Eden Rosemary | Footscray High School | Footscray | Mathematical Methods | 40 |
| 248 | Dunne, Thomas Bold | Brighton Grammar School | Brighton | Mathematical Methods | 49 |
| 249 | Duong, Adyn Viet Chau | Mazenod College | Mulgrave | Mathematical Methods | 43 |
| 250 | Duong, Justin | Keysborough Secondary College Acacia | Keysborough | Mathematical Methods | 46 |