This is the SACE Honour Roll, listing every award, merit or prize won by South Australian SACE students in 2015, along with their school and subject details.
The report also includes significant Australian national awards and prizes such as the Australian Student Prize.
| 1050 | Slater, Natasha Joy | SA | Merit | Solo Performance | |
| 1051 | Slattery, Miriam | SA | Merit | Mathematical Studies | |
| 1052 | Slimming, Emily Rose | SA | Merit | Research Project B | |
| 1053 | Smerdon, Stefan Carl | SA | Merit | English Communications | |
| 1054 | Smerdon, Stefan Carl | SA | Merit | Religion Studies | |
| 1055 | Smith, Helen Christine | SA | Merit | Drama | |
| 1056 | Smith, Lachlan | SA | Merit | Physical Education | |
| 1057 | Smith, Lachlan | SA | Merit | Research Project B | |
| 1058 | Snell, Ada Sophia | SA | Merit | Research Project B | |
| 1059 | Snelling, William Alexander | SA | Merit | Research Project B | |
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| 1060 | Sobey, Brieanna Angela | SA | Merit | Research Project B | |
| 1061 | Solanki, Dhaval | SA | Merit | Research Project B | |
| 1062 | Spajic, Dana | SA | Merit | Biology | |
| 1063 | Spajic, Dana | SA | Merit | English Studies | |
| 1064 | Spajic, Dana | SA | Prize: Hardwicke College Prize | Biology | |
| 1065 | Spano, Rhiannen | SA | Merit | Research Project B | |
| 1066 | Spanovskis, Tomas Peter | SA | Merit | Business and Enterprise | |
| 1067 | Spencer, David | SA | Merit | Drama | |
| 1068 | Spooner, Zoe Cecile | SA | Merit | Visual Arts - Art | |
| 1069 | Squires, Emily Jane Olivia | SA | Merit | Performance Special Study | |
| 1070 | Squires, Emily Jane Olivia | SA | Prize: Don Maynard Music Prize | Music | |
| 1071 | Stahl, Hope Jemimah | SA | Merit | Chemistry | |
| 1072 | Stahl, Hope Jemimah | SA | Merit | Mathematical Studies | |
| 1073 | Stahl, Hope Jemimah | SA | Merit | Physics | |
| 1074 | Stahl, Hope Jemimah | SA | Merit | Research Project B | |
| 1075 | Stahl, Hope Jemimah | SA | Merit | Specialist Mathematics | |
| 1076 | Stahl, Hope Jemimah | SA | Prize: Campbell Award | ||
| 1077 | Stahl, Hope Jemimah | Modbury High School | Modbury | Gov of SA SACE Award | |
| 1078 | Standing, Vanessa Marie | SA | Merit | Research Project B | |
| 1079 | Stankevicius, Anna | SA | Merit | Nutrition | |
| 1080 | Stankevicius, Anna | SA | Merit | Research Project B | |
| 1081 | Starick, Rebekah | SA | Merit | Agricultural and Horticultural Management | |
| 1082 | Starick, Rebekah | SA | Merit | Research Project B | |
| 1083 | Stathy, Jonathan Christopher | SA | Merit | Research Project B | |
| 1084 | Stathy, Jonathan Christopher | SA | Merit | Visual Arts - Design | |
| 1085 | Steen, Jack Benjamin | SA | Merit | Biology | |
| 1086 | Steen, Jack Benjamin | SA | Merit | Geography | |
| 1087 | Steen, Jack Benjamin | SA | Prize: John Lewis Medal and Prize | Geography | |
| 1088 | Stephens, Anais | SA | Merit | Research Project B | |
| 1089 | Stevens, Jacinta | SA | Merit | Research Project B | |
| 1090 | Stevens, Paige | SA | Merit | Information Processing and Publishing | |
| 1091 | Stewart, Jack Thomas | SA | Merit | Research Project B | |
| 1092 | Stimson, Alec Hamish | SA | Merit | Research Project B | |
| 1093 | Stocker Johns, Ricky Gordon | SA | Merit | Research Project B | |
| 1094 | Stocker-Johns, Ricky Gordon | Glossop High School | Glossop | Gov of SA SACE Award | |
| 1095 | Stokes, Jonathan Matthew | SA | Merit | Business and Enterprise | |
| 1096 | Stokes, Jonathan Matthew | SA | Merit | Society and Culture | |
| 1097 | Strange, Brooke Paige | SA | Merit | English Communications | |
| 1098 | Su, Jen | SA | Merit | Biology | |
| 1099 | Summerton, Madeleine Kate | SA | Merit | Mathematical Applications | |