This is the SACE Honour Roll, listing every award, merit or prize won by South Australian SACE students in 2005, along with their school and subject details.
The report also includes significant Australian national awards and prizes such as the Australian Student Prize.
| 147 | Carter, Elizabeth Anne | SA | Merit | Lifestyle and the Community | |
| 148 | Carter, Rebecca Hayward | SA | Merit | Modern History | |
| 149 | Carter, Thomas Michael | SA | Merit | Music Individual Study | |
| 150 | Champion, Jessica | SA | Merit | Drama Studies | |
| 151 | Chan, Lui Sum (Sam) | SA | Merit | Accounting Studies | |
| 152 | Chant, Danielle | SA | Merit | Psychology | |
| 153 | Chant, Danielle | SA | Merit | Tourism | |
| 154 | Chapman, Samuel Robert | SA | Merit | Economics | |
| 155 | Charitou, Evangelia | SA | Merit | Modern Greek (Continuers) | |
| 156 | Chase, Kristy | SA | Merit | English Communications | |
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| 157 | Cheers, Kirra | SA | Merit | Communication Products B | |
| 158 | Cheers, Kirra | SA | Merit | English Communications | |
| 159 | Cheers, Kirra | SA | Merit | Ensemble Performance | |
| 160 | Chehade, Natalia | SA | Merit | Mathematical Applications | |
| 161 | Chen, Joanna Lee Ann | SA | Merit | English as Second Language Studies | |
| 162 | Cheney, Martin Timothy | SA | Merit | Musicianship | |
| 163 | Cheung, Gary (Tsz Chung) | SA | Merit | Solo Performance | |
| 164 | Chooi, Cheryl Sook Lai | SA | Merit | Biology | |
| 165 | Chooi, Cheryl Sook Lai | SA | Merit | Chemistry | |
| 166 | Chooi, Cheryl Sook Lai | SA | Merit | English Communications | |
| 167 | Chryssidis, Helene Michele | SA | Merit | English Communications | |
| 168 | Clark, Jason Ricky | SA | Merit | Physical Education | |
| 169 | Clark, Sarah Elizabeth | SA | Merit | English Communications | |
| 170 | Clarke, Jade Peta | SA | Merit | Women's Studies | |
| 171 | Clarke, Rachel | SA | Merit | Economics | |
| 172 | Clarke, Rachel | SA | Merit | Physics | |
| 173 | Clarke, Samuel | SA | Merit | English Communications | |
| 174 | Cocks, Sheena Sharee | SA | Merit | Health Studies | |
| 175 | Codrington, Ashleigh Jayne | SA | Merit | Business Documents | |
| 176 | Cogan, Georgina | SA | Merit | Physical Education | |
| 177 | Colebatch, Eliza Josephine | SA | Merit | Biology | |
| 178 | Colebatch, Eliza Josephine | SA | Merit | English Communications | |
| 179 | Colebatch, Eliza Josephine | SA | Merit | Nutrition | |
| 180 | Colebatch, Eliza Josephine | SA | Merit | Psychology | |
| 181 | Colebatch, Eliza Josephine | Pembroke School | Kensington Park | Australian Student Prize | |
| 182 | Collins-McBride, Campbell | SA | Merit | Accounting Studies | |
| 183 | Consalvo, Hannah Josephine | SA | Merit | Early Childhood Studies | |
| 184 | Cooper, Ivan | SA | Merit | Biology | |
| 185 | Cooper, Jade | SA | Merit | English Studies | |
| 186 | Cooper, Jade | SA | Merit | Solo Performance | |
| 187 | Cooper, Louise Elizabeth | SA | Merit | English Studies | |
| 188 | Cooper, Matthew | SA | Merit | Design, Construction and the Community I | |
| 189 | Cordell, Melissa Jane | SA | Merit | Communication Products A | |
| 190 | Cousins, Jacqueline | SA | Merit | Geography Studies | |
| 191 | Cousins, Jacqueline | SA | Merit | Mathematical Methods | |
| 192 | Cozens, Lucinda Claire | SA | Merit | Health, Recreation and the Community I | |
| 193 | Crawford, Emily Laura | SA | Merit | English Studies | |
| 194 | Crawford, Emily Laura | SA | Merit | Modern History | |
| 195 | Croser, Nicholas | SA | Merit | Physical Education | |
| 196 | Cross, Nicholas Mathieson | SA | Merit | Geography Studies | |