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.
| 1325 | Xu, Huan Rong | SA | Merit | Mathematical Studies | |
| 1326 | Xu, Huan Rong | SA | Merit | Specialist Mathematics | |
| 1327 | Xu, Robert Bo | SA | Merit | Mathematical Studies | |
| 1328 | Xu, Robert Bo | SA | Merit | Physics | |
| 1329 | Xu, Robert Bo | SA | Merit | Specialist Mathematics | |
| 1330 | Yamamoto, Mariko | SA | Merit | Japanese (Continuers) | |
| 1331 | Yang, Meng | SA | Merit | Chinese (Background Speakers) | |
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| 1332 | Yapp, Kehn Enn | SA | Merit | Physics | |
| 1333 | Yapp, Kehn Enn | SA | Merit | Specialist Mathematics | |
| 1334 | Yip, Wing Yin | SA | Merit | Physics | |
| 1335 | Young, Shelley Renee | SA | Merit | Tourism | |
| 1336 | Yu, Raymond | SA | Prize: Australian Institute of Physics Prize - Bronze Bragg Medal | Physics | |
| 1337 | Yu, Raymond | SA | Prize: OneSteel Prize and Medal for Mathematics, Physics, and Chemistry | ||
| 1338 | Yu, Raymond | SA | Prize: Way College Prize and Medal | Chemistry | |
| 1339 | Yu, Raymond Wei | SA | Merit | Chemistry | |
| 1340 | Yu, Raymond Wei | SA | Merit | English Studies | |
| 1341 | Yu, Raymond Wei | SA | Merit | Mathematical Studies | |
| 1342 | Yu, Raymond Wei | SA | Merit | Physics | |
| 1343 | Yu, Raymond Wei | SA | Merit | Specialist Mathematics | |
| 1344 | Yu, Raymond Wei | St Michaels College | Henley Beach | Australian Student Prize | |
| 1345 | Zanker, David | SA | Merit | Information Technology Studies | |
| 1346 | Zeleny, Diana | SA | Prize: Economics Teachers Society of SA Prize | Economics | |
| 1347 | Zeleny, Diana Maria | SA | Merit | Economics | |
| 1348 | Zeleny, Diana Maria | SA | Merit | Modern History | |
| 1349 | Zeleny, Diana Maria | SA | Merit | Politics | |
| 1350 | Zhao, Kim (Quan) | SA | Merit | Solo Performance | |
| 1351 | Zhou, Chao | SA | Merit | Philosophy | |
| 1352 | Zhou, Tiger | SA | Merit | Biology | |
| 1353 | Zhou, Tiger | SA | Merit | Mathematical Studies | |
| 1354 | Zhou, Tiger | SA | Merit | Physics | |
| 1355 | Zhu, Jinni | SA | Merit | Physics | |
| 1356 | Ziegeler, Cara Jessica | SA | Merit | Media Production and Analysis | |
| 1357 | Zimbardi, Laura | SA | Merit | Media Production and Analysis | |
| 1358 | Ziukelis, Dayna | SA | Merit | Modern History | |
| 1359 | Ziukelis, Dayna | SA | Merit | Visual Arts Studies | |