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.
| 160 | Carr, Jock | SA | Merit | Visual Arts - Design | |
| 161 | Carrodus, Emma | SA | Merit | Physical Education | |
| 162 | Carruthers, Malachy Christopher Ben | SA | Merit | Modern History | |
| 163 | Carter, Chelsea Rose | SA | Merit | Tourism | |
| 164 | Cassar, Prudence | SA | Merit | English | |
| 165 | Casson, Penelope | SA | Merit | English | |
| 166 | Casson, Penelope | SA | Merit | Research Project B | |
| 167 | Castaneda Habel, Isabel Leticia | SA | Merit | Psychology | |
| 168 | Castle, Bethany | SA | Merit | Research Project B | |
| 169 | Chadwick, Georgia Fay | SA | Merit | Biology | |
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| 170 | Chaggar, Viraj Singh | SA | Merit | Chemistry | |
| 171 | Chaggar, Viraj Singh | SA | Merit | General Mathematics | |
| 172 | Chalmers, Bethany Ann | SA | Merit | Psychology | |
| 173 | Chalmers, Lachlan Peter | SA | Merit | Research Project B | |
| 174 | Chalmers, Lachlan Peter | SA | Merit | Specialist Mathematics | |
| 175 | Chan, Jyun Jing | SA | Merit | English as an Additional Language | |
| 176 | Chan, Nicole Sheong Ling | SA | Merit | Biology | |
| 177 | Chand, Shriya Shikha | SA | Merit | Workplace Practices | |
| 178 | Chang, Sunwoo | SA | Merit | Chemistry | |
| 179 | Chang, Sunwoo | SA | Merit | Mathematical Methods | |
| 180 | Chang, Victoria Hannah | SA | Merit | Research Project B | |
| 181 | Chang, Wen Yue | SA | Merit | Chinese (Continuers) | |
| 182 | Chang, Wen Yue | SA | Merit | Mathematical Methods | |
| 183 | Chapman, Riley Thomas | SA | Merit | Business and Enterprise | |
| 184 | Chauhan, Shivanshiba | SA | Merit | Physical Education | |
| 185 | Cheesman, Cassandra | SA | Merit | Child Studies | |
| 186 | Cheesman, Cassandra | SA | Merit | Religion Studies | |
| 187 | Chen, Liwei | SA | Merit | Biology | |
| 188 | Chen, Ru Jin Yi | SA | Merit | Research Project B | |
| 189 | Cheng, Xin Yi | SA | Merit | Information Processing and Publishing | |
| 190 | Cheung, Ellie Yau | SA | Merit | Chemistry | |
| 191 | Cheung, Ellie Yau | SA | Merit | Chinese (Continuers) | |
| 192 | Chew, Jessica Ying An | SA | Merit | Biology | |
| 193 | Chew, Jessica Ying An | SA | Merit | Mathematical Methods | |
| 194 | Chiera-Garnelli, Alessandra | SA | Merit | Psychology | |
| 195 | Chin, Faith Hui-En | SA | Merit | General Mathematics | |
| 196 | Chittleborough, Thomas Nabil | SA | Merit | English | |
| 197 | Cho, Ha Yoon | SA | Merit | Food and Hospitality | |
| 198 | Choi, Jung Eun | SA | Merit | Japanese (Continuers) | |
| 199 | Christone, Filbert | Portside Christian College | New Port | Gov of SA SACE Award | |
| 200 | Chung, Justin | SA | Merit | Chemistry | |
| 201 | Chung, Justin | SA | Merit | Mathematical Methods | |
| 202 | Chung, Justin | SA | Merit | Physics | |
| 203 | Chung, Justin | SA | Merit | Specialist Mathematics | |
| 204 | Chybinski, Emily Jasmine | SA | Merit | Biology | |
| 205 | Chybinski, Emily Jasmine | SA | Merit | Chemistry | |
| 206 | Cirocco, Gianni Ferdinando | SA | Merit | English | |
| 207 | Clark, Holly Meg | SA | Merit | English | |
| 208 | Clayfield, Samantha May | SA | Merit | Health | |
| 209 | Clift, Jasmine | SA | Merit | Physical Education | |