This is the SACE Honour Roll, listing every award, merit or prize won by South Australian SACE students in 2020, along with their school and subject details.
The report also includes significant Australian national awards and prizes such as the Australian Student Prize.
| 244 | d'Achille, Matthew | SA | Merit | Mathematical Methods | |
| 245 | d'Achille, Matthew | SA | Merit | Research Project B | |
| 246 | d'Silva, Liam | SA | Merit | Psychology | |
| 247 | Daija, Kliti | SA | Merit | Research Project A | |
| 248 | Dalton, Catherine | St Marys College | Adelaide | Gov of SA SACE Award | |
| 249 | Datta Gupta, Koninika | SA | Merit | English | |
| 250 | Davidson, Molly | SA | Merit | Business Innovation | |
| 251 | Davis, Aidyn | Naracoorte High School | Naracoorte | Gov of SA SACE Award | |
| 252 | Davis, Kyla Jasmijn | SA | Merit | Research Project B | |
| 253 | Davis, Oliver | SA | Merit | Material Solutions | |
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| 254 | Dawe, Ashleigh Jennifer | SA | Merit | English | |
| 255 | Dawe, Ashleigh Jennifer | SA | Merit | Integrated Learning A | |
| 256 | de Bacco, Gabriel | SA | Merit | Industry and Entrepreneurial Solutions | |
| 257 | de Gennaro, Sarah | SA | Merit | Research Project B | |
| 258 | de Pasquale, Joel Alexander | SA | Merit | Mathematical Methods | |
| 259 | Dean, Emma Louise | SA | Merit | Research Project B | |
| 260 | Degilio, Kayla Jae | SA | Merit | Integrated Learning B | |
| 261 | Dell'Oro, Alana | SA | Merit | Visual Arts - Design | |
| 262 | Devgun, Eesha | SA | Merit | General Mathematics | |
| 263 | Dhillon, Sahajdeep Kaur (Lily) | SA | Merit | Business and Enterprise | |
| 264 | Di Cola, Lily | SA | Merit | Research Project B | |
| 265 | Dickinson, Lucy Ellen | SA | Merit | Physics | |
| 266 | Diko, Angelique | SA | Merit | Music Performance - Ensemble | |
| 267 | Diko, Angelique | SA | Merit | Music Performance - Solo | |
| 268 | Dimas, James | SA | Merit | Research Project B | |
| 269 | Dimitrious, Panayiota | SA | Merit | Integrated Learning A | |
| 270 | Divall, Kiah Ann | SA | Merit | Child Studies | |
| 271 | Divall, Kiah Ann | SA | Merit | English | |
| 272 | Divall, Kiah Ann | SA | Merit | Research Project B | |
| 273 | Dix, Alice Catherine | SA | Merit | Research Project B | |
| 274 | Do, Jasmine Diem Huong | SA | Merit | English | |
| 275 | Dodsworth, Eleanor | SA | Merit | Modern History | |
| 276 | Dolling, Isobel | SA | Merit | General Mathematics | |
| 277 | Dolling, Isobel | SA | Merit | Research Project B | |
| 278 | Dolman, Lottie Fayth | SA | Merit | Research Project B | |
| 279 | Donato, Sabrina | SA | Merit | Psychology | |
| 280 | Doney, Lucy | SA | Merit | General Mathematics | |
| 281 | Dongas, Georgia | SA | Merit | General Mathematics | |
| 282 | Dostizada, Shakiba | SA | Merit | Interdisciplinary Learning and the Community | |
| 283 | Douglas, Patrick | SA | Merit | English | |
| 284 | Driver, Grace | SA | Merit | Research Project B | |
| 285 | Dugan, Emily | SA | Merit | Research Project B | |
| 286 | Duggin, Arthur Henry James | SA | Merit | Media Studies | |
| 287 | Duncan, Lucy | SA | Merit | Research Project B | |
| 288 | Dutka, Justyna Joanna | SA | Merit | Polish (Continuers) | |
| 289 | Duval, Amelia Ellen | SA | Merit | Research Project A | |
| 290 | Dzino, Ariel | SA | Merit | Creative Arts | |
| 291 | Ebert, Jessica | SA | Merit | Research Project B | |
| 292 | Edge, Tamsin | SA | Merit | English | |
| 293 | Edwards, Caitlin Susanna | SA | Merit | Chemistry | |