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.
| 842 | Muir, Catherine Emma | SA | Merit | English Communications | |
| 843 | Mumford, Rebecca Jane | SA | Merit | Food and Hospitality | |
| 844 | Munslow, Sarah Ann | SA | Merit | Mathematical Applications | |
| 845 | Murdock, Amelia | SA | Merit | English Studies | |
| 846 | Murdock, Amelia | SA | Merit | Mathematical Applications | |
| 847 | Murdock, Amelia | SA | Merit | Studies of Religion | |
| 848 | Murphy, Adam | SA | Merit | Physical Education | |
| 849 | Musolino, Mathew | SA | Merit | Ensemble Performance | |
| 850 | Narendranathan, Cumatan Kobi | SA | Merit | Information Technology Studies | |
| 851 | Neale, Stephan | SA | Merit | The Arts and the Community | |
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| 852 | Needs, Jayne Margaret | SA | Merit | Biology | |
| 853 | Nelligan, Ross | SA | Merit | Mathematical Studies | |
| 854 | Nelligan, Ross | SA | Merit | Physics | |
| 855 | Nelson, Christopher Stephen | SA | Merit | Mathematical Applications | |
| 856 | Nelson, Sophie Victoria | SA | Merit | Mathematical Studies | |
| 857 | Newton, Sarah | SA | Merit | Art Practical | |
| 858 | Ng, Cherylyn Pei-Lin | SA | Merit | Musicianship | |
| 859 | Ng, Helen | SA | Merit | English Studies | |
| 860 | Ngov, Julie | SA | Merit | English Studies | |
| 861 | Ngov, Julie | SA | Merit | Philosophy | |
| 862 | Nguyen, Anthony Luong | SA | Merit | English as Second Language Studies | |
| 863 | Nguyen, Hanh My | SA | Merit | Desktop Publishing | |
| 864 | Nguyen, Hieu | SA | Merit | Religions in Australia | |
| 865 | Nguyen, Hung Nam | SA | Merit | English as Second Language Studies | |
| 866 | Nguyen, Huy | SA | Merit | English as Second Language Studies | |
| 867 | Nguyen, Judy | SA | Merit | Computing Applications | |
| 868 | Nguyen, Lan Thi Truong | SA | Merit | English as Second Language Studies | |
| 869 | Nguyen, Sylvia | SA | Merit | English Studies | |
| 870 | Nguyen, Thi Thanh Truc | SA | Merit | Vietnamese (Continuers) | |
| 871 | Nguyen, Tuyet-Linh | SA | Merit | English as Second Language Studies | |
| 872 | Nguyen, Viet Tien | SA | Merit | Economics | |
| 873 | Nicholls, Donna | SA | Merit | Ensemble Performance | |
| 874 | Nicholson, Lydia Clare | SA | Merit | Drama Studies | |
| 875 | Nicholson, Lydia Clare | SA | Merit | English Studies | |
| 876 | Nicolai, Kerry-Ann Joy | SA | Merit | Personal Documents | |
| 877 | Nikic, Lauren Kate | SA | Merit | English Studies | |
| 878 | Nishizawa, Tomoko | SA | Merit | Japanese (Continuers) | |
| 879 | Nitschke, Charmain | SA | Merit | Desktop Publishing | |
| 880 | Nitschke, Michael John | SA | Merit | Physical Education | |
| 881 | Noack, Michael Daniel | SA | Merit | Broadcasting and Multimedia B | |
| 882 | Nolan, Penelope Jane | SA | Merit | Language and the Community | |
| 883 | Noonan, Caitlin Elizabeth | SA | Merit | Biology | |
| 884 | Noonan, Caitlin Elizabeth | SA | Merit | Physical Education | |
| 885 | Northcott, Jessica Louise | SA | Merit | Outdoor Education | |
| 886 | Nosworthy, Elizabeth Evelyn | SA | Merit | Biology | |
| 887 | Nosworthy, Elizabeth Evelyn | SA | Merit | Chemistry | |
| 888 | Nowak, Anna | SA | Merit | Biology | |
| 889 | Nowak, Anna | SA | Merit | Physics | |
| 890 | Nuske, Kaylene | SA | Merit | Agricultural and Horticultural Studies II | |
| 891 | Nusrat, Shadiya | SA | Merit | Biology | |