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.
| 1078 | Wiebrecht, Kelly Megan | SA | Merit | Australian History | |
| 1079 | Wiebrecht, Kelly Megan | SA | Prize: Annie Montgomerie Martin Prize and Medal for Modern History | Modern History | |
| 1080 | Wiencke, Rachacia Christine | SA | Merit | Music Individual Study | |
| 1081 | Wilkie, Karli | SA | Merit | Health, Recreation and the Community | |
| 1082 | Wilkinson, Rose-Marie Alyce | SA | Merit | English Communications | |
| 1083 | Wilkinson, Rose-Marie Alyce | SA | Merit | Studies of Societies | |
| 1084 | Wilksch, Jarrod | SA | Merit | Business Studies | |
| 1085 | Wilksch, Jarrod | SA | Merit | Legal Studies | |
| 1086 | Williams, Brett Michael | SA | Merit | Ensemble Performance | |
| 1087 | Williams, Brett Michael | SA | Merit | Solo Performance | |
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| 1088 | Williams, Christopher Paul | SA | Merit | Mathematical Studies | |
| 1089 | Williams, Elyse | SA | Merit | English Studies | |
| 1090 | Williams, Elyse Joy | SA | Merit | Psychology | |
| 1091 | Williams, Erica June | SA | Merit | English Communications | |
| 1092 | Williams, Erica June | SA | Merit | Geography Studies | |
| 1093 | Williams, Erica June | SA | Merit | Visual Arts Studies | |
| 1094 | Williams, Jason | SA | Merit | Performance Special Study | |
| 1095 | Willis, Thomas Everard | SA | Merit | Mathematical Studies | |
| 1096 | Wilson, Dale Robert | SA | Merit | Material Products A | |
| 1097 | Wilson, David | SA | Merit | Accounting Studies | |
| 1098 | Wilson, Jessica Bronwyn | SA | Merit | Design, Construction and the Community | |
| 1099 | Wilson, Kate Alana | SA | Merit | English Communications | |
| 1100 | Wilson, Ryan William | SA | Merit | Design Practical | |
| 1101 | Witford, Amanda Jane | SA | Merit | English Communications | |
| 1102 | Wong, Jenna | SA | Merit | Solo Performance | |
| 1103 | Wong, Nicole Xin Hui | SA | Merit | Mathematical Studies | |
| 1104 | Wong, Nicole Xin Hui | SA | Merit | Specialist Mathematics | |
| 1105 | Wong, Winnie | SA | Merit | Chemistry | |
| 1106 | Wong, Winnie | SA | Merit | Chinese (Continuers) | |
| 1107 | Wong, Winnie | SA | Merit | Physics | |
| 1108 | Wong, Winnie Wing Kwan | Pembroke School | Kensington Park | Australian Student Prize | |
| 1109 | Woodhouse, Shirley dawn | SA | Merit | Craft Practical | |
| 1110 | Worley, Michael Stuart | SA | Merit | Geography Studies | |
| 1111 | Worley, Michael Stuart | SA | Merit | Mathematical Studies | |
| 1112 | Worley, Michael Stuart | SA | Prize: John Lewis Medal and Prize | Geography | |
| 1113 | Wray, Emily Kate | SA | Merit | Food and Hospitality Studies | |
| 1114 | Wu, Jennifer Hoi Yee | SA | Merit | English as Second Language Studies | |
| 1115 | Wu, Shuang | SA | Merit | Accounting Studies | |
| 1116 | Wyatt, Sarah | SA | Merit | Physical Education | |
| 1117 | Yam, Charmaine Hiu-Ying | SA | Merit | Accounting Studies | |
| 1118 | Yam, Charmaine Hiu-Ying | SA | Merit | Biology | |
| 1119 | Yam, Charmaine Hiu-Ying | SA | Merit | Chemistry | |
| 1120 | Yam, Charmaine Hiu-Ying | SA | Merit | Chinese (Continuers) | |
| 1121 | Yam, Charmaine Hiu-Ying | SA | Merit | English Studies | |
| 1122 | Yam, Charmaine Hiu-Ying | Pembroke School | Kensington Park | Australian Student Prize | |
| 1123 | Yamamura, Makoto | SA | Merit | Japanese (Continuers) | |
| 1124 | Yeates, Aleisha | SA | Merit | Vocational Studies A | |
| 1125 | Young, Louise Anna | SA | Merit | Mathematical Studies | |
| 1126 | Young, Louise Anna | SA | Merit | Specialist Mathematics | |
| 1127 | Young, Prue Felicity Heather | SA | Merit | Tourism | |