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.
| 1136 | Terrington, Breanna | SA | Merit | Chemistry | |
| 1137 | Terrington, Breanna | SA | Merit | Mathematical Methods | |
| 1138 | Thach, Thi My Sieu (Michelle) | SA | Merit | Psychology | |
| 1139 | Thai, Jessica | SA | Merit | English | |
| 1140 | Thavarajah, Preshaan | SA | Merit | Physics | |
| 1141 | Theodorakakos, Martina | SA | Merit | Economics | |
| 1142 | Theodorakakos, Martina | SA | Merit | English Literary Studies | |
| 1143 | Theodorakakos, Martina | SA | Merit | Modern History | |
| 1144 | Theodorakakos, Martina | Walford Anglican School for Girls | Hyde Park | Gov of SA SACE Award | |
| 1145 | Thiselton, Lucy | SA | Merit | Research Project B | |
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| 1146 | Thoday, Jack | SA | Merit | Integrated Learning A | |
| 1147 | Thomas, Chloe Louise | SA | Merit | Research Project B | |
| 1148 | Thomas, Lauren | SA | Merit | Child Studies | |
| 1149 | Thomas, Sebastian James Kyffin | SA | Merit | Research Project B | |
| 1150 | Thomas, Tahnee | SA | Merit | Material Solutions | |
| 1151 | Thompson, Arivian | SA | Merit | Integrated Learning A | |
| 1152 | Thompson, Arivian | SA | Merit | Research Project B | |
| 1153 | Thorpe, Emmah Jiayu | SA | Merit | Research Project B | |
| 1154 | Thursby, Jude | SA | Merit | Research Project A | |
| 1155 | Timms, Jessica Jade | SA | Merit | Australian and International Politics | |
| 1156 | Tirimacco, Joelle | SA | Merit | General Mathematics | |
| 1157 | Tirimacco, Joelle | SA | Merit | Material Solutions | |
| 1158 | Toffoli, Zara Jade | SA | Merit | Research Project B | |
| 1159 | Tolis, Anastasia | SA | Merit | Research Project B | |
| 1160 | Tonkin, Ella Rose | SA | Merit | Workplace Practices | |
| 1161 | Toomey, Alyssa Louise | SA | Merit | Business Innovation | |
| 1162 | Tran, Diep Nhat An Andrew | SA | Merit | Industry and Entrepreneurial Solutions | |
| 1163 | Tran, Phi-Khanh | SA | Merit | Research Project B | |
| 1164 | Tregenza, Samuel David | SA | Merit | Accounting | |
| 1165 | Tregenza, Samuel David | SA | Merit | Economics | |
| 1166 | Trezona, Hannah | SA | Merit | Research Project B | |
| 1167 | Trigg, Ella | SA | Merit | English | |
| 1168 | Tripodi, Joseph | SA | Merit | Integrated Learning A | |
| 1169 | Tripodi, Joseph | SA | Merit | Physics | |
| 1170 | Tripodi, Joseph | SA | Merit | Specialist Mathematics | |
| 1171 | Truong, Brandon | SA | Merit | Biology | |
| 1172 | Truscott, Mahala | SA | Merit | Business Innovation | |
| 1173 | Tsiaros, Antonios | SA | Merit | General Mathematics | |
| 1174 | Tsimiklis, James Daniel | SA | Merit | Essential Mathematics | |
| 1175 | Tsokkos, Mos | SA | Merit | Modern Greek (Continuers) | |
| 1176 | Tsui, Carmen | SA | Merit | Industry and Entrepreneurial Solutions | |
| 1177 | Tsui, Carmen | SA | Merit | Research Project B | |
| 1178 | Tu, Kenny Enkai | SA | Merit | Mathematical Methods | |
| 1179 | Tudorovic, Hannah | SA | Merit | English | |
| 1180 | Tune, Daniel John | SA | Merit | Modern History | |
| 1181 | Turland, Kaitlin | SA | Merit | Research Project B | |
| 1182 | Turner, Stephanie | SA | Merit | English Literary Studies | |
| 1183 | Tuteja, Ravneet Singh | SA | Merit | General Mathematics | |
| 1184 | Tye, Sharna | SA | Merit | Health | |
| 1185 | Tyson, Edward Henry | SA | Merit | English | |