This is the SACE Honour Roll, listing every award, merit or prize won by South Australian SACE students in 2020, along with their school and subject details.
The report also includes significant Australian national awards and prizes such as the Australian Student Prize.
| 741 | Mckenzie, Jack Harrison | SA | Merit | General Mathematics | |
| 742 | McLoughlin, Mary | SA | Merit | Society and Culture | |
| 743 | McMahon, Alicia | SA | Merit | Business Innovation | |
| 744 | McNamara, Noah | SA | Merit | English | |
| 745 | Mead, Jasmin | SA | Merit | General Mathematics | |
| 746 | Mech, Angelika | SA | Merit | Research Project B | |
| 747 | Meegasdeniya, Nidula | SA | Merit | Industry and Entrepreneurial Solutions | |
| 748 | Mehta, Sarthak | SA | Merit | English as an Additional Language | |
| 749 | Mehta, Sarthak | SA | Merit | Mathematical Methods | |
| 750 | Mencel, Lucy Isobel | SA | Merit | Research Project B | |
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| 751 | Menon, Trishna | SA | Merit | Essential English | |
| 752 | Menon, Trishna | SA | Merit | Essential Mathematics | |
| 753 | Merrett, Isabelle Clare | SA | Merit | Biology | |
| 754 | Merrett, Isabelle Clare | SA | Merit | Research Project B | |
| 755 | Merrigan, Ned | SA | Merit | Material Solutions | |
| 756 | Meyers, Shelby | SA | Merit | Food and Hospitality | |
| 757 | Michael-Roubos, Niamh Neraida | SA | Merit | English | |
| 758 | Michaels, Nic Darcy | SA | Merit | General Mathematics | |
| 759 | Michele, Bethany May | SA | Merit | Research Project B | |
| 760 | Miles, Scarlett | SA | Merit | English | |
| 761 | Mill, Ruby | SA | Merit | Research Project B | |
| 762 | Miller, Charlie | SA | Merit | Drama | |
| 763 | Miller, Darcy Tilly | SA | Merit | Research Project B | |
| 764 | Miller, Hannah | SA | Merit | Digital Communication Solutions | |
| 765 | Miller, Jasmin | SA | Merit | General Mathematics | |
| 766 | Miller, Raener Louise | SA | Merit | Biology | |
| 767 | Miller, Taylah Jordyn | SA | Merit | Research Project B | |
| 768 | Mills, Elizabeth | SA | Merit | English Literary Studies | |
| 769 | Mills, Elizabeth | SA | Merit | Physics | |
| 770 | Milne, Edward James | SA | Merit | English | |
| 771 | Milton, Jasmine Olivia | SA | Merit | Music Performance - Ensemble | |
| 772 | Milton, Jasmine Olivia | SA | Merit | Music Performance - Solo | |
| 773 | Minett, Stuart Neil | SA | Merit | Mathematical Methods | |
| 774 | Mitchell, Oscar | SA | Merit | Research Project B | |
| 775 | Mobbs, Amelie | SA | Merit | English | |
| 776 | Mobbs, Amelie | SA | Merit | Society and Culture | |
| 777 | Moffa, Carla Angelina | SA | Merit | Integrated Learning A | |
| 778 | Moffa, Carla Angelina | SA | Merit | Research Project B | |
| 779 | Moffa, Tayla Rhona | SA | Merit | Research Project B | |
| 780 | Mohammad, Raghad | SA | Merit | Arabic (Continuers) | |
| 781 | Mohammad, Raghad | SA | Merit | Essential English | |
| 782 | Mohammadi, Ali | SA | Merit | Health | |
| 783 | Mohammadi, Ali | SA | Merit | Religion Studies | |
| 784 | Mohapatra, Amy Madhuri | SA | Merit | Material Solutions | |
| 785 | Molony, Liza Rose | SA | Merit | Biology | |
| 786 | Momesso, Daniel | SA | Merit | Industry and Entrepreneurial Solutions | |
| 787 | Momesso, Daniel | SA | Merit | Research Project B | |
| 788 | Mondello, Luigi | SA | Merit | Research Project B | |
| 789 | Montague, Chloe | SA | Merit | Physical Education | |
| 790 | Moon, Jeongyeon | SA | Merit | Visual Arts - Design | |