This is the SACE Honour Roll, listing every award, merit or prize won by South Australian SACE students in 2021, along with their school and subject details.
The report also includes significant Australian national awards and prizes such as the Australian Student Prize.
| 799 | Nair, Alisha Shaina | SA | Merit | Research Project B | |
| 800 | Nairn, Yasmin Sophie | SA | Merit | Research Project B | |
| 801 | Nathan, Max Bernard | SA | Merit | Chemistry | |
| 802 | Nedomansky, Daniel | SA | Merit | Mathematical Methods | |
| 803 | Nehvi, Parizaad Tariq | SA | Merit | Ancient Studies | |
| 804 | Nehvi, Parizaad Tariq | SA | Merit | English Literary Studies | |
| 805 | Nehvi, Parizaad Tariq | SA | Merit | Research Project B | |
| 806 | Nelson, Lisa Mary | SA | Merit | General Mathematics | |
| 807 | Nenke, Charlotte | SA | Merit | Research Project B | |
| 808 | Newberry, Edward | SA | Merit | Research Project B | |
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| 809 | Ngo, Sophie | SA | Merit | English | |
| 810 | Nguyen, Alyssa | SA | Merit | Research Project B | |
| 811 | Nguyen, Bao Nhat | SA | Merit | Integrated Learning A | |
| 812 | Nguyen, Huy Lam | SA | Merit | Specialist Mathematics | |
| 813 | Nguyen, Lisa | SA | Merit | English as an Additional Language | |
| 814 | Nguyen, Ngoc Minh Van | SA | Merit | Business Innovation | |
| 815 | Nguyen, Ngoc Minh Van | SA | Merit | Information Processing and Publishing | |
| 816 | Nguyen, Sophie | SA | Merit | English as an Additional Language | |
| 817 | Nguyen, Tiffanii Bao-Ngoc | SA | Merit | Research Project B | |
| 818 | Nguyen, Trung-Hieu | SA | Merit | Essential English | |
| 819 | Nguyen, Trung-Hieu | SA | Merit | Health and Wellbeing | |
| 820 | Nguyen, Vanessa | SA | Merit | Research Project B | |
| 821 | Ni, Alex | SA | Merit | Chemistry | |
| 822 | Nichols, Amelie Eve | SA | Merit | English | |
| 823 | Ninio, Jeremy Frank | SA | Merit | Digital Technologies | |
| 824 | Nitschke, William James | SA | Merit | English | |
| 825 | Nixon, Genevieve Bridget | SA | Merit | Dance | |
| 826 | Nixon, Genevieve Bridget | SA | Merit | Research Project B | |
| 827 | Nkombera, Evelline Akonkwa | SA | Merit | Health and Wellbeing | |
| 828 | Noonan, Annie | SA | Merit | General Mathematics | |
| 829 | Norman, Sophie | SA | Merit | Music Performance - Ensemble | |
| 830 | Noutz, Imogen Cate | SA | Merit | English Literary Studies | |
| 831 | Noutz, Imogen Cate | SA | Merit | Psychology | |
| 832 | Nunn, Zoe | SA | Merit | Research Project B | |
| 833 | O'Callaghan, Lauren Grace | SA | Merit | English Literary Studies | |
| 834 | O'Connell, Grainne Anneke | SA | Merit | Psychology | |
| 835 | O'Connor, Ella Mary Maeve | SA | Merit | Biology | |
| 836 | O'Connor, Ella Mary Maeve | SA | Merit | Nutrition | |
| 837 | O'Dwyer, Paige | SA | Merit | Integrated Learning A | |
| 838 | O'Reardon, Harriet | SA | Merit | Child Studies | |
| 839 | O'Reardon, Harriet | SA | Merit | Society and Culture | |
| 840 | O'Rielly, Tahlia | SA | Merit | Dance | |
| 841 | O'Shannessy, Riley | SA | Merit | Research Project B | |
| 842 | Oberdan, Dana Gina | SA | Merit | Chemistry | |
| 843 | Oberdan, Dana Gina | SA | Merit | English | |
| 844 | Oehler, Josephine | SA | Merit | Chemistry | |
| 845 | Oehler, Josephine | SA | Merit | English | |
| 846 | Olafsen, Samuel | SA | Merit | General Mathematics | |
| 847 | Oldfield, Thomas James | SA | Merit | English | |
| 848 | Olijnyk, Marina | SA | Merit | Music Performance - Solo | |