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.
| 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 | |
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| 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 | |
| 1091 | South, Jordan Mitchel | SA | Merit | Research Project B | |
| 1092 | Speake, Kira Lyn | SA | Merit | Research Project B | |
| 1093 | Speranza, Natalie | SA | Merit | Research Project B | |
| 1094 | Stafford, Nathan | SA | Merit | Dance | |
| 1095 | Stafford, Nathan | SA | Merit | Music Performance - Solo | |
| 1096 | Standley-Grace, Georgia Lee | SA | Merit | Outdoor Education | |
| 1097 | Stattin, Amber | SA | Merit | Integrated Learning A | |
| 1098 | Stattmann, Lucy Karen | SA | Merit | Business Innovation | |
| 1099 | Steer, Chelsea Ruby | SA | Merit | Physical Education | |
| 1100 | Stefanopoulos, Paras | SA | Merit | Chemistry | |
| 1101 | Stefanopoulos, Paras | SA | Merit | Mathematical Methods | |
| 1102 | Stefanopoulos, Paras | SA | Merit | Physics | |
| 1103 | Stefanopoulos, Paras | SA | Merit | Research Project B | |
| 1104 | Stefanopoulos, Paras | SA | Merit | Specialist Mathematics | |
| 1105 | Stefanopoulos, Paras | St Michaels College | Henley Beach | Gov of SA SACE Award | |
| 1106 | Stephens, Lewis | SA | Merit | General Mathematics | |
| 1107 | Stephenson, Ellie | SA | Merit | English | |
| 1108 | Stevens, Lucy | SA | Merit | English | |
| 1109 | Stevenson, Savannah-Leigh | SA | Merit | Chemistry | |
| 1110 | Stevenson, Savannah-Leigh | SA | Merit | English | |
| 1111 | Stevenson, Savannah-Leigh | SA | Merit | Research Project B | |
| 1112 | Stopford, Zoe | SA | Merit | Food and Hospitality | |
| 1113 | Strangio, Domenic | SA | Merit | Integrated Learning A | |
| 1114 | Strangio, Domenic | SA | Merit | Psychology | |
| 1115 | Stretton, Jasmine | SA | Merit | Health | |
| 1116 | Su, Kevin Nianchu | SA | Merit | Mathematical Methods | |
| 1117 | Sudhir, Anushka | SA | Merit | Business Innovation | |
| 1118 | Sultan, Mahala | SA | Merit | Communication and the Community | |