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.
| 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 | |
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| 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 | |
| 791 | Morgan, Amber Faith | SA | Merit | Food and Hospitality | |
| 792 | Morgan, Sarah | SA | Merit | Psychology | |
| 793 | Morton, Charles James | SA | Merit | Chemistry | |
| 794 | Morton, Charles James | SA | Merit | English | |
| 795 | Morton, Charles James | SA | Merit | Mathematical Methods | |
| 796 | Moseby Read, Layla | SA | Merit | English | |
| 797 | Moseby Read, Layla | SA | Merit | General Mathematics | |
| 798 | Moss, Madeleine Jemima | SA | Merit | Biology | |
| 799 | Moularadellis, Emma | SA | Merit | Business Innovation | |
| 800 | Mubarak, Roshni | SA | Merit | Essential Mathematics | |
| 801 | Muhtasim, Saajid | SA | Merit | Research Project B | |
| 802 | Muir, Emilie | SA | Merit | Research Project B | |
| 803 | Mukherjee, Shiva Kim | SA | Merit | Accounting | |
| 804 | Mulrooney, Isobella | SA | Merit | Ancient Studies | |
| 805 | Muniandy, Remashree | SA | Merit | Indonesian (Continuers) | |
| 806 | Munir, Liam Zain | SA | Merit | Biology | |
| 807 | Murphy, Ethan | SA | Merit | English | |
| 808 | Murphy, Ethan | SA | Merit | Physical Education | |
| 809 | Muscat, Kara | SA | Merit | Research Project B | |
| 810 | Nagpal, Jeevika | SA | Merit | English | |
| 811 | Nairn, Emma | SA | Merit | Nutrition | |
| 812 | Napier, Lachlan Craig | SA | Merit | Physics | |
| 813 | Napoli, Sophie | SA | Merit | Workplace Practices | |
| 814 | Natt, Mitchell William | SA | Merit | Economics | |
| 815 | Natt, Mitchell William | SA | Merit | Research Project B | |
| 816 | Navaratne, Devnie Paramee | SA | Merit | Essential Mathematics | |
| 817 | Navaratne, Devnie Paramee | SA | Merit | Integrated Learning A | |