This is the SACE Honour Roll, listing every award, merit or prize won by South Australian SACE students in 2003, along with their school and subject details.
The report also includes significant Australian national awards and prizes such as the Australian Student Prize.
| 1036 | Salatino, Andrea Mario | SA | Merit | Music Individual Study | |
| 1037 | Sanderson, Malia Ruth | SA | Merit | Music Individual Study | |
| 1038 | Sarantaugas, Alexi | SA | Merit | Accounting Studies | |
| 1039 | Sargent, Leigh Rosslyn | SA | Merit | Mathematical Methods | |
| 1040 | Saunders, David William | SA | Merit | Musicianship | |
| 1041 | Saunders, David William | SA | Merit | Solo Performance | |
| 1042 | Saxon, Christopher | SA | Merit | Vocational Studies A | |
| 1043 | Scales, Raymond | SA | Merit | Health, Recreation and the Community | |
| 1044 | Schaefer, Marissa Kate | SA | Merit | Geography Studies | |
| 1045 | Schirmer, Amy Catherine | SA | Merit | Biology | |
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| 1046 | Schmaal, Heidi Elise | SA | Merit | Biology | |
| 1047 | Schmaal, Heidi Elise | SA | Merit | Chemistry | |
| 1048 | Schmidt, Rachel Naomi | SA | Merit | Child Studies | |
| 1049 | Schmitz, Joanna Ruth | SA | Merit | Ensemble Performance | |
| 1050 | Schmitz, Joanna Ruth | SA | Merit | Music Individual Study | |
| 1051 | Schumann, Ellen | SA | Merit | English Communications | |
| 1052 | Schutz, Leanne | SA | Merit | Accounting Studies | |
| 1053 | Scollin, Ashleigh Jayne | SA | Merit | Food and Hospitality | |
| 1054 | Scott, Elise Joy | SA | Merit | Solo Performance | |
| 1055 | Scott, Naomi Heather | SA | Merit | Music Individual Study | |
| 1056 | Scott-Hoy, Lachlan Sidney | SA | Merit | Mathematical Studies | |
| 1057 | Seaton, Fiona | SA | Merit | Biology | |
| 1058 | Seppelt, Lucy Alexandra | SA | Merit | Australian History | |
| 1059 | Shea, Jessica Cecile | SA | Merit | Legal Studies | |
| 1060 | Sheedy, Henry | SA | Merit | Music Individual Study | |
| 1061 | Shepherd, Andrew Robert Hyatt | SA | Merit | Information Technology | |
| 1062 | Sheridan, Samuel John | SA | Merit | English Studies | |
| 1063 | Sheridan, Samuel John | SA | Merit | Religions in Australia | |
| 1064 | Shillabeer, Amy Louise | SA | Merit | Technology and the Community | |
| 1065 | Shortt-Smith, Anna Geraldine | SA | Merit | Visual Arts Studies | |
| 1066 | Sidey, Alice Molly | SA | Merit | Biology | |
| 1067 | Sidey, Alice Molly | SA | Merit | Physical Education | |
| 1068 | Simakov, Nikita | SA | Merit | Specialist Mathematics | |
| 1069 | Simpson, Nicola Helen | SA | Merit | Geography Studies | |
| 1070 | Sims, Kelly Lee | SA | Merit | Design, Construction and the Community | |
| 1071 | Singh, Shareenjit | SA | Merit | English as Second Language Studies | |
| 1072 | Slater, Derek Henry | SA | Merit | Design, Construction and the Community | |
| 1073 | Slater, Derek Henry | SA | Merit | The Arts and the Community | |
| 1074 | Slattery, Henry William | SA | Merit | Physical Education | |
| 1075 | Slipper, Bridget Alison | SA | Merit | Music in Society | |
| 1076 | Sloan, Todd James | SA | Merit | Design, Construction and the Community | |
| 1077 | Smiley, Stephen James | SA | Merit | French (Continuers) | |
| 1078 | Smith, Andre Nicol | SA | Merit | Vocational Studies A | |
| 1079 | Smith, Gavin Sydney | SA | Merit | Information Technology Studies | |
| 1080 | Smith, Gavin Sydney | SA | Merit | Mathematical Studies | |
| 1081 | Smith, Gavin Sydney | SA | Merit | Small Business Enterprise | |
| 1082 | Smith, Julie May | SA | Merit | Mathematical Applications | |
| 1083 | Smith, Philippa Catherine | SA | Merit | English Communications | |
| 1084 | Solomon-Bridge, Alice Rachel | SA | Merit | Food and Hospitality | |
| 1085 | Soper, Taegan Jane | SA | Merit | Mathematical Applications | |