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.
| 1041 | Sexton, Hannah Claire | SA | Merit | English | |
| 1042 | Shacklock, Oliver Henry Alfred | SA | Merit | Mathematical Methods | |
| 1043 | Shah, Aneri Kartik | SA | Merit | Business Innovation | |
| 1044 | Shah, Jheel Jayant | SA | Merit | English as an Additional Language | |
| 1045 | Shah, Sanjhi | SA | Merit | Essential Mathematics | |
| 1046 | Sharp, Joshua | SA | Merit | Integrated Learning A | |
| 1047 | Sharp, Joshua | SA | Merit | Physics | |
| 1048 | Shearer, Isabel | SA | Merit | Physical Education | |
| 1049 | Shepherdson, Teliah Jade | SA | Merit | Food and Hospitality | |
| 1050 | Shin, Dongwoo | SA | Merit | Mathematical Methods | |
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| 1051 | Short, Alexandra | SA | Merit | English | |
| 1052 | Shum, Wai Lik (Adrian) | SA | Merit | Research Project B | |
| 1053 | Sibley, Emily | SA | Merit | General Mathematics | |
| 1054 | Silva, Samoda Lakdini | SA | Merit | Society and Culture | |
| 1055 | Simionato, Nicholas Anthony | SA | Merit | Research Project B | |
| 1056 | Simpson, Annabelle | SA | Merit | Essential Mathematics | |
| 1057 | Simpson, Ella Grace | SA | Merit | Material Solutions | |
| 1058 | Simpson, Marli Allanson | SA | Merit | English | |
| 1059 | Simpson, Rhiannon | SA | Merit | General Mathematics | |
| 1060 | Simpson, Toby | SA | Merit | General Mathematics | |
| 1061 | Singh, Yuvraj Achal | SA | Merit | Accounting | |
| 1062 | Singh, Yuvraj Achal | SA | Merit | General Mathematics | |
| 1063 | Singleton, Patrick Michael | SA | Merit | Modern History | |
| 1064 | Sinhal, Shrey | St Peters College | St Peters | Prize: Australian Institute of Physics Prize - Bronze Bragg Medal | Physics |
| 1065 | Sinhal, Shreyans | SA | Merit | Chemistry | |
| 1066 | Sinhal, Shreyans | SA | Merit | Mathematical Methods | |
| 1067 | Sinhal, Shreyans | SA | Merit | Physics | |
| 1068 | Sinhal, Shreyans | SA | Merit | Specialist Mathematics | |
| 1069 | Sinhal, Shreyans | St Peters College | St Peters | Gov of SA SACE Award | |
| 1070 | Sivasubramanian, Deavadarshan | SA | Merit | Mathematical Methods | |
| 1071 | Skothos, George | SA | Merit | Digital Communication Solutions | |
| 1072 | Slade, Sascha | SA | Merit | Child Studies | |
| 1073 | Slade, Sascha | SA | Merit | English | |
| 1074 | Slattery, Ruth | SA | Merit | Integrated Learning B | |
| 1075 | Sloman-Smith, Dannielle Joan | SA | Merit | Food and Hospitality | |
| 1076 | Smallridge, Michael Robin | SA | Merit | Research Project B | |
| 1077 | Smart, Josephine Niamh | SA | Merit | Physics | |
| 1078 | Smith, Emma Rosemarie | SA | Merit | General Mathematics | |
| 1079 | Smith, Emma Rosemarie | SA | Merit | Music Explorations | |
| 1080 | Smith, Hope | SA | Merit | English | |
| 1081 | Smith, Olivia | SA | Merit | Food and Hospitality | |
| 1082 | Smith, Olivia | SA | Merit | Research Project B | |
| 1083 | Smith, Zoe Michelle | SA | Merit | Dance | |
| 1084 | Smith-Munro, Olivia Jane | SA | Merit | Women's Studies | |
| 1085 | Smolicz, Alexandra Olenka | SA | Merit | Visual Arts - Design | |
| 1086 | Snelling, Francis | SA | Merit | Specialist Mathematics | |
| 1087 | Sodano, Michael | SA | Merit | Mathematical Methods | |
| 1088 | Soong, Talisa | SA | Merit | English Literary Studies | |
| 1089 | Soong, Talisa | SA | Merit | General Mathematics | |
| 1090 | Sooriyabandara, Paarami | SA | Merit | Information Processing and Publishing | |