This is the SACE Honour Roll, listing every award, merit or prize won by South Australian SACE students in 2018, along with their school and subject details.
The report also includes significant Australian national awards and prizes such as the Australian Student Prize.
| 225 | D'ORTENZIO, Luke Harrison | SA | Merit | English | |
| 226 | DAISH, Georgie Rose | SA | Merit | Biology | |
| 227 | DAISH, Georgie Rose | SA | Merit | Chemistry | |
| 228 | DAISH, Georgie Rose | SA | Merit | General Mathematics | |
| 229 | DALIDOWICZ, Jade | SA | Merit | Visual Arts - Art | |
| 230 | DALKOS, Eleni | SA | Merit | Research Project B | |
| 231 | DALLIMORE, Jasmine | SA | Merit | Society and Culture | |
| 232 | DALWOOD, Oliver | SA | Merit | Workplace Practices | |
| 233 | DAMA, Alethea Laura | SA | Merit | Research Project B | |
| 234 | DANG, Huynh Bao Chau | SA | Merit | Vietnamese (Background Speakers) | |
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| 235 | DANG-HUYNH, Liam Phi | SA | Merit | Psychology | |
| 236 | DANIEL, Sasha Helen | SA | Merit | Food and Hospitality | |
| 237 | DASONDI, Aatmaj Shivam | SA | Merit | Chemistry | |
| 238 | DASONDI, Aatmaj Shivam | SA | Merit | General Mathematics | |
| 239 | DASONDI, Aatmaj Shivam | SA | Merit | Physics | |
| 240 | DAVID, Sheryl Ramona | SA | Merit | Research Project B | |
| 241 | DAVIDSON, Kitty Kalpa | SA | Merit | Modern History | |
| 242 | DAVIES, Sophie Elizabeth | SA | Merit | Drama | |
| 243 | DAVIES, Sophie Elizabeth | SA | Merit | English Literary Studies | |
| 244 | DAVIES, Sophie Elizabeth | SA | Merit | Information Processing and Publishing | |
| 245 | DAVIES, Sophie Elizabeth | SA | Merit | Legal Studies | |
| 246 | DAVIES, Sophie Elizabeth | SA | Merit | Solo Performance | |
| 247 | DAWE, Benjamin Thomas Humphries | SA | Merit | Chemistry | |
| 248 | DAY, Eliza Jayne | SA | Merit | English | |
| 249 | DAY, Eliza Jayne | SA | Merit | Physical Education | |
| 250 | DAYMAN, Michael William | SA | Merit | Research Project A | |
| 251 | DE BARRO, Courtney Annalise | SA | Merit | English | |
| 252 | DE PIZZOL, Zali | SA | Merit | Business and Enterprise | |
| 253 | DE PIZZOL, Zali | SA | Merit | English | |
| 254 | DE ZOYSA, Randula | SA | Merit | Physics | |
| 255 | DEAN, Griffin Angus | SA | Merit | Research Project B | |
| 256 | DEGREEF, Aaron | SA | Merit | Research Project B | |
| 257 | DELA CRUZ, Francis Arice | SA | Merit | Research Project B | |
| 258 | DELBRIDGE, Piper Emily | SA | Merit | Health | |
| 259 | DELIC, Amelia | SA | Merit | Religion Studies | |
| 260 | DELIC, Amelia | SA | Merit | Research Project B | |
| 261 | DELIC, Annalise | SA | Merit | Modern History | |
| 262 | Delic, Annalise | Eynesbury Senior College | Adelaide | Gov of SA SACE Award | |
| 263 | DELO, Yasna | SA | Merit | Drama | |
| 264 | DELUCA, Pia Manuela | SA | Merit | Biology | |
| 265 | DELUCA, Pia Manuela | SA | Merit | English Literary Studies | |
| 266 | DELUCA, Pia Manuela | SA | Merit | Psychology | |
| 267 | DEMPSTER, Jessica Rose | SA | Merit | Essential Mathematics | |
| 268 | DENG, Jazmine Kaye | SA | Merit | Creative Arts | |
| 269 | DENNIS, Isabella | SA | Merit | Research Project B | |
| 270 | DENNIS, Mia | SA | Merit | Research Project B | |
| 271 | DERRINGTON, Jennifer Jean | SA | Merit | General Mathematics | |
| 272 | DESANTIS, Tia | SA | Merit | English | |
| 273 | DEVITO, Hannah | SA | Merit | Physical Education | |
| 274 | DEVITO, Liberty | SA | Merit | General Mathematics | |