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.
| 151 | Cabot, Amy | SA | Merit | The Arts and the Community | |
| 152 | Cain, Stephanie Alice | SA | Merit | Biology | |
| 153 | Cain, Stephanie Alice | SA | Merit | Chemistry | |
| 154 | Calam, Nicholas Derek Leonard | SA | Merit | English Studies | |
| 155 | Calam, Nicholas Derek Leonard | SA | Merit | Modern History | |
| 156 | Calam, Nicholas Derek Leonard | SA | Merit | Politics | |
| 157 | Calleja, Adam | SA | Merit | Technology and the Community | |
| 158 | Campbell, Marie Anne McKreith | SA | Merit | Nutrition | |
| 159 | Canale, Alexander Samuel | SA | Merit | Accounting Studies | |
| 160 | Canale, Alexander Samuel | SA | Merit | Economics | |
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| 161 | Canale, Alexander Samuel | SA | Merit | English Studies | |
| 162 | Canale, Alexander Samuel | SA | Merit | Legal Studies | |
| 163 | Canale, Alexander Samuel | Mercedes College | Springfield | Australian Student Prize | |
| 164 | Cantley, Melissa | SA | Merit | Studies of Societies | |
| 165 | Caon, Amy | SA | Merit | Tourism | |
| 166 | Carey, Judith Anne | SA | Merit | Child Studies | |
| 167 | Carger, Meaghan Louise | SA | Merit | Mathematical Applications | |
| 168 | Cargill, Heather | SA | Merit | Mathematical Applications | |
| 169 | Carpenter, Sarah Diane | SA | Merit | Biology | |
| 170 | Carr, Joshua Christian | SA | Merit | Mathematical Studies | |
| 171 | Carrabs, Tamika | SA | Merit | Information Technology | |
| 172 | Carter, Sharayah | SA | Merit | Nutrition | |
| 173 | Caruso, Edith | SA | Merit | Science and the Community | |
| 174 | Caruso, Glynis | SA | Merit | Science and the Community | |
| 175 | Caruso, Natalie | SA | Merit | Business Studies | |
| 176 | Carvosso, Annabel Jane | SA | Merit | Studies of Societies | |
| 177 | Casiou, Constantinos | SA | Merit | Modern Greek (Continuers) | |
| 178 | Castle, James Andrew | SA | Merit | Technical Graphics | |
| 179 | Catford, Tristan Craig | SA | Merit | Furniture Construction | |
| 180 | Centenera, James | SA | Merit | Mathematical Studies | |
| 181 | Chamberlain, Jarod Paul | SA | Merit | The Arts and the Community | |
| 182 | Chambers, Allison Jane | SA | Merit | Mathematical Applications | |
| 183 | Chan, Amy Ka Lam | SA | Merit | Chinese (Continuers) | |
| 184 | Chan, Kathryn | SA | Merit | Chinese (Continuers) | |
| 185 | Chanisheff, Daniel | SA | Merit | Biology | |
| 186 | Chanisheff, Daniel | SA | Merit | Mathematical Methods | |
| 187 | Chapman, Brittany | SA | Merit | Mathematical Applications | |
| 188 | Chapman, Skye Caitlin | SA | Merit | English Communications | |
| 189 | Chapman, Wayne Leslie | SA | Merit | Health, Recreation and the Community | |
| 190 | Chapman, Wayne Leslie | SA | Merit | The Community and the Environment | |
| 191 | Charlton, Elizabeth Hayley | SA | Merit | Music in Society | |
| 192 | Charlton, Elizabeth Hayley | SA | Merit | Musicianship | |
| 193 | Charlton, Elizabeth Hayley | SA | Merit | Physics | |
| 194 | Charlton, Elizabeth Hayley | SA | Merit | Solo Performance | |
| 195 | Chartier, Benjamin John | SA | Merit | Mathematical Studies | |
| 196 | Chartier, Benjamin John | SA | Merit | Physics | |
| 197 | Chatterton, Andrew William | SA | Merit | Analytical Studies | |
| 198 | Chatterton, Andrew William | SA | Merit | Composing and Arranging | |
| 199 | Chatterton, Andrew William | SA | Merit | Musicianship | |
| 200 | Chatterton, Andrew William | SA | Merit | Solo Performance | |