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.
| 737 | Manuelli, Stephanie | SA | Merit | Vocational Studies B | |
| 738 | Marafiote, Rosa | SA | Merit | Italian (Continuers) | |
| 739 | Marinkovic, Martina | SA | Merit | Visual Arts Studies | |
| 740 | Markovic, Dusan | SA | Merit | Chemistry | |
| 741 | Markovic, Dusan | SA | Merit | Physics | |
| 742 | Markow, Alexandra Olimbia | SA | Merit | Studies of Societies | |
| 743 | Marshallsay, Jessica Elaine | SA | Merit | Australian History | |
| 744 | Martin, Alastair | SA | Merit | Accounting Studies | |
| 745 | Martin, Alastair | SA | Merit | Business Studies | |
| 746 | Martin, Amy Susan | SA | Merit | Electronic Publishing | |
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| 747 | Martin, Catriona Alice Stuart | SA | Merit | Biology | |
| 748 | Martin, Catriona Alice Stuart | SA | Merit | Chemistry | |
| 749 | Martin, George | SA | Merit | Physical Education | |
| 750 | Martin, Jess | SA | Merit | Physical Education | |
| 751 | Martin, Josiah Thomas | SA | Merit | Mathematical Studies | |
| 752 | Martin, Lucy Elizabeth | SA | Merit | Chemistry | |
| 753 | Martin, Lucy Elizabeth | SA | Merit | Mathematical Studies | |
| 754 | Martin, Lucy Elizabeth | SA | Merit | Physics | |
| 755 | Martin, Lucy Elizabeth | St Peters Girls School | Stonyfell | Australian Student Prize | |
| 756 | Martin, Timothy | SA | Merit | Media Production and Analysis | |
| 757 | Mason, Andrew Bernard | SA | Merit | Biology | |
| 758 | Massey, Thomas Andrew | SA | Merit | Outdoor Education | |
| 759 | Mates, Sean Allan | SA | Merit | Energy | |
| 760 | Matheson, Danielle Renee | SA | Merit | Language and the Community | |
| 761 | Mathews, Kate Eleanor | SA | Merit | Classical Studies | |
| 762 | Mathews, Kate Eleanor | SA | Merit | English Studies | |
| 763 | Mathews, Megan Sue | SA | Merit | Foods and the Community | |
| 764 | Mattschoss, Lisa Alison | SA | Merit | Child Studies | |
| 765 | Mawla'i, Nasrin | SA | Merit | Persian (Background Speakers) | |
| 766 | Maxwell, Cameron | SA | Merit | English Studies | |
| 767 | Maxwell, Cameron | SA | Merit | Mathematical Studies | |
| 768 | McAllister, Andrew John | SA | Merit | The Australian Legal System | |
| 769 | McAllister, Suzanne Mary | SA | Merit | Biology | |
| 770 | McAllister, Suzanne Mary | SA | Merit | Chemistry | |
| 771 | McBride, Duncan | SA | Merit | Solo Performance | |
| 772 | McBride, Louise Evereld | SA | Merit | English Communications | |
| 773 | McCallum, Sophie Frances | SA | Merit | Aboriginal Studies | |
| 774 | McCappin, Natalie Frances | SA | Merit | Biology | |
| 775 | McCappin, Natalie Frances | SA | Merit | Chemistry | |
| 776 | McCappin, Natalie Frances | SA | Merit | Physics | |
| 777 | McCaskill, Rachel | SA | Merit | English Communications | |
| 778 | McConnell, Ross | SA | Merit | Physical Education | |
| 779 | McConnell, Scott | SA | Merit | Music Individual Study | |
| 780 | McCormack, Carlee Jade | SA | Merit | Child Studies | |
| 781 | McFarlane, Anthony James | SA | Merit | Community Work II | |
| 782 | McGlone, Brian Roy | SA | Merit | Art Practical | |
| 783 | McGovern, Margot Elsie | SA | Merit | Drama Studies | |
| 784 | McGregor, Daisy | SA | Merit | Economics | |
| 785 | McInerney, Tara | SA | Merit | Food and Hospitality | |
| 786 | McLean, Matthew Gregory | SA | Merit | Biology | |