This is the SACE Honour Roll, listing every award, merit or prize won by South Australian SACE students in 2012, along with their school and subject details.
The report also includes significant Australian national awards and prizes such as the Australian Student Prize.
| 975 | Sveinsson, Lara | SA | Merit | English Studies | |
| 976 | Sveinsson, Lara | SA | Merit | Legal Studies | |
| 977 | Swan, Ellen | SA | Merit | Research Project B | |
| 978 | Sweet, Caitlin | SA | Merit | Research Project B | |
| 979 | Symons, Christopher | SA | Merit | Research Project B | |
| 980 | Tait, Elizabeth | SA | Merit | English Communications | |
| 981 | Tamlin, Lachlan | Pembroke School | Kensington Park | Australian Student Prize | |
| 982 | Tasker, Victoria | SA | Merit | Ensemble Performance | |
| 983 | Tasker, Victoria | SA | Merit | Research Project B | |
| 984 | Taylor, Elise | SA | Merit | Society and Culture | |
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| 985 | Tearle, Marshall | SA | Merit | Systems and Control Products I | |
| 986 | Thai, Melissa | SA | Merit | Scientific Studies | |
| 987 | Theodore-Smith, Christina | SA | Merit | Mathematical Studies | |
| 988 | Theodore-Smith, Christina | SA | Merit | Physics | |
| 989 | Thiel, Alisha | SA | Merit | Psychology | |
| 990 | Thomas, Catrin | SA | Merit | Material Products I | |
| 991 | Thompkins, Vanessa | SA | Merit | Mathematical Studies | |
| 992 | Thompkins, Vanessa | SA | Merit | Physics | |
| 993 | Thompson, Madeleine | SA | Merit | Biology | |
| 994 | Thorneycroft, Isobelle | SA | Merit | English Communications | |
| 995 | Tolhurst, Nancy | SA | Merit | Research Project B | |
| 996 | Tolis, Maree | SA | Merit | Research Project B | |
| 997 | Tomczyk, Claudia Therese | SA | Merit | Vocational Studies B | |
| 998 | Toumazos, Dimitri | SA | Merit | Accounting | |
| 999 | Tozer, Jonathon | SA | Merit | Mathematical Studies | |
| 1000 | Tran, Andre Khuong | SA | Merit | Biology | |
| 1001 | Tran, Emily Kaiyi | SA | Merit | English as Second Language Studies | |
| 1002 | Tran, Lana | SA | Merit | Mathematical Studies | |
| 1003 | Tran, Nha Thanh | SA | Merit | Accounting | |
| 1004 | Tran, Nhung | SA | Merit | Research Project B | |
| 1005 | Tran, Nicholas Chau | SA | Merit | Biology | |
| 1006 | Tran, Nicholas Chau | SA | Merit | English Communications | |
| 1007 | Tran, Thi Viet Anh | SA | Merit | Vietnamese (Background Speakers) | |
| 1008 | Tran, Thuy-Tien | SA | Merit | Mathematical Studies | |
| 1009 | Trehan, Sharad | SA | Merit | Biology | |
| 1010 | Trehan, Sharad | SA | Merit | Mathematical Studies | |
| 1011 | Trehan, Sharad | SA | Merit | Research Project B | |
| 1012 | Trehan, Sharad | Saint Ignatius College | Athelstone | Australian Student Prize | |
| 1013 | Treloar, Hebe | SA | Merit | Legal Studies | |
| 1014 | Trinh, Bonnie | SA | Merit | English Communications | |
| 1015 | Tripodi, Saverio | SA | Merit | Information Processing and Publishing | |
| 1016 | Tripodo, Anthony | SA | Merit | Mathematical Applications | |
| 1017 | Tronnolone, Sarah | SA | Merit | Integrated Learning | |
| 1018 | Trzcinski, Stephanie | SA | Merit | Research Project B | |
| 1019 | Tsokas, Effie | SA | Merit | Psychology | |
| 1020 | Tsompanoudi, Anna | SA | Merit | Modern Greek (Continuers) | |
| 1021 | Tsompanoudi, Anna | SA | Prize: Australian Hellenic Educational Progressive Association Prize | Modern Greek | |
| 1022 | Tsouvallas, Elias | SA | Merit | Chemistry | |
| 1023 | Tsymbal, Alexander | SA | Merit | Mathematical Studies | |
| 1024 | Twigger, Ashley | SA | Merit | Biology | |