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.
| 578 | Huynh, Vannsy | SA | Merit | Biology | |
| 579 | Hwang, Yong | SA | Merit | Korean (Background Speakers) | |
| 580 | Iannotti, Renee Lauren | SA | Merit | Mathematical Studies | |
| 581 | Iles, Michael | SA | Merit | Chemistry | |
| 582 | Iles, Michael | SA | Merit | Mathematical Studies | |
| 583 | Iles, Michael | SA | Merit | Physics | |
| 584 | Iles, Michael | SA | Merit | Specialist Mathematics | |
| 585 | Iles, Michael Eu Seng | St Peters College | St Peters | Australian Student Prize | |
| 586 | Ilicic, Vanessa | SA | Merit | English Studies | |
| 587 | Illman, Stacey Lee | SA | Merit | Desktop Publishing | |
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| 588 | Inglis, Kristen Anne | SA | Merit | Child Studies | |
| 589 | Innes, Jane Louise | SA | Merit | Music Individual Study | |
| 590 | Innes, Skye Mercedes | SA | Merit | Economics | |
| 591 | Innes, Skye Mercedes | SA | Merit | English Studies | |
| 592 | Iselin-Blumberg, Atila | SA | Merit | Health, Recreation and the Community | |
| 593 | Ishii, Yudai | SA | Merit | Japanese (Continuers) | |
| 594 | Jackson, Lachlan | SA | Merit | Construction Technology | |
| 595 | Jaeschke, Meg Naomi | SA | Merit | English Communications | |
| 596 | Jaeschke, Samuel | SA | Merit | Mathematical Studies | |
| 597 | Jagminas, Meaghan Jessica | SA | Merit | The Community and the Environment | |
| 598 | Jagodnik, Jamie | SA | Merit | Physical Education | |
| 599 | Jankunas, James | SA | Merit | The Community and the Environment | |
| 600 | Janus, Anthony Peter | SA | Merit | Performance Special Study | |
| 601 | Jarman, Courtney | SA | Merit | Tourism | |
| 602 | Jarzabek, Cheryl Anne | SA | Merit | Accounting Studies | |
| 603 | Jarzabek, Cheryl Anne | SA | Merit | Economics | |
| 604 | Jenner, David Patrick | SA | Merit | Physical Education | |
| 605 | Jeong, Ryang Ja | SA | Merit | Japanese (Continuers) | |
| 606 | Johns, Samuel James | SA | Merit | Design Practical | |
| 607 | Johnson, Kayla Lauren Barbara | SA | Merit | Child Studies | |
| 608 | Johnson, Samantha | SA | Merit | Chemistry | |
| 609 | Johnson, Samantha | SA | Merit | Physical Education | |
| 610 | Johnson, Samantha | SA | Merit | Physics | |
| 611 | Johnston, Helen Margaret | SA | Merit | Art Practical | |
| 612 | Jones, Alwyn Keltie | SA | Merit | Furniture Construction | |
| 613 | Jones, Becky Maree | SA | Merit | English Studies | |
| 614 | Jones, Evan William | SA | Merit | Outdoor Education | |
| 615 | Jones, Graham Michael | SA | Merit | The Arts and the Community | |
| 616 | Jones, Ingrid Brenda | SA | Merit | Technical Graphics | |
| 617 | Jones, Lachlan William | SA | Merit | Music Individual Study | |
| 618 | Kaden, Connie Francis | SA | Merit | Mathematical Applications | |
| 619 | Kanter, Anna | SA | Merit | Accounting Studies | |
| 620 | Kanter, Anna | SA | Merit | English as Second Language Studies | |
| 621 | Kappler, Danielle Maria | SA | Merit | Performance Special Study | |
| 622 | Karittevlis, Anastasia Vasiliki | SA | Merit | Food and Hospitality | |
| 623 | Karlsson, Rebecca Carlene | SA | Merit | Australian History | |
| 624 | Karlsson, Rebecca Carlene | SA | Merit | English Studies | |
| 625 | Karlsson, Rebecca Carlene | SA | Merit | Mathematical Applications | |
| 626 | Kass, Joel Stewart | SA | Merit | Business Studies | |
| 627 | Kato, Kanako | SA | Merit | Japanese (Continuers) | |