This is the SACE Honour Roll, listing every award, merit or prize won by South Australian SACE students in 2018, along with their school and subject details.
The report also includes significant Australian national awards and prizes such as the Australian Student Prize.
| 651 | MATTO, Isabella | SA | Merit | Religion Studies | |
| 652 | MAUVIEL, Lucy | SA | Merit | Research Project B | |
| 653 | MAY, Samuel | SA | Merit | General Mathematics | |
| 654 | MAY, Samuel | SA | Merit | Modern History | |
| 655 | MAY, Zoe | SA | Merit | General Mathematics | |
| 656 | MAZZEO, Luca | SA | Merit | Research Project B | |
| 657 | MCBRIDE, Annabel Grace | SA | Merit | Business and Enterprise | |
| 658 | MCDONALD, Madeline | SA | Merit | Child Studies | |
| 659 | MCDONALD, William Alexander | SA | Merit | Accounting | |
| 660 | MCFARLANE, Marni | SA | Merit | General Mathematics | |
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| 661 | MCKAY, Alice Evelyn | SA | Merit | Drama | |
| 662 | MCKELLAR-STEWART, Kate | SA | Merit | English Literary Studies | |
| 663 | MCKENNA, Liam | SA | Merit | General Mathematics | |
| 664 | MCLEAN, Ella | SA | Merit | General Mathematics | |
| 665 | MCMAHON, Kira Maree | SA | Merit | Biology | |
| 666 | MCMAHON, Kira Maree | SA | Merit | Physical Education | |
| 667 | MCNAMARA, Jordan Linda | SA | Merit | Psychology | |
| 668 | MCVANN, Alice | SA | Merit | English | |
| 669 | MCWHIRTER, Jack | SA | Merit | Research Project B | |
| 670 | MEANEY, Matthew Boyd | SA | Merit | Workplace Practices | |
| 671 | MENCEL, Jack Edward | SA | Merit | Ancient Studies | |
| 672 | MENON, Riya | SA | Merit | English | |
| 673 | MENON, Sanjana Vijayan | SA | Merit | English Literary Studies | |
| 674 | MENSFORTH, Grace | SA | Merit | Food and Hospitality | |
| 675 | MERCORELLA, Christopher | SA | Merit | General Mathematics | |
| 676 | MESSENT, Sophie | SA | Merit | Psychology | |
| 677 | MEYER, Katie | SA | Merit | English | |
| 678 | MICHOS, Arissa | SA | Merit | Business and Enterprise | |
| 679 | MICKLEY, Jackson Andrew | SA | Merit | Mathematical Methods | |
| 680 | MICKLEY, Jackson Andrew | SA | Merit | Physics | |
| 681 | MICKLEY, Jackson Andrew | SA | Merit | Specialist Mathematics | |
| 682 | MIDDLETON, Emily Kate | SA | Merit | General Mathematics | |
| 683 | MILES, Noah | SA | Merit | Communication Products II | |
| 684 | MILES, Noah | SA | Merit | Physics | |
| 685 | MILHAM-MEYER, Angel | SA | Merit | Legal Studies | |
| 686 | MILLER, Alice Caitlin | SA | Merit | Visual Arts - Design | |
| 687 | MILOVANOVIC, Matthew | SA | Merit | Research Project B | |
| 688 | MINOPOULOS, Dion Stefon | SA | Merit | Essential Mathematics | |
| 689 | MITCHELL, Lauren | SA | Merit | Information Processing and Publishing | |
| 690 | MITTIGA, Calista | SA | Merit | Research Project B | |
| 691 | MOHAMMED, Hashim | SA | Merit | Essential English | |
| 692 | MONKLEY, Georgia Louise | SA | Merit | Communication Products I | |
| 693 | MONTEIRO, Lisha Lancy | SA | Merit | English as an Additional Language | |
| 694 | MOREY, Chelsie Metelli | SA | Merit | Visual Arts - Art | |
| 695 | MORIARTY, Patrick | SA | Merit | Physical Education | |
| 696 | MORRICE, Olivia May | SA | Merit | English | |
| 697 | MORRICE, Olivia May | SA | Merit | General Mathematics | |
| 698 | MORRIS, Chloe Bokyeong | SA | Merit | Nutrition | |
| 699 | MORRISON, Jessica Rebeccah | SA | Merit | Biology | |
| 700 | MORRISSEY, Rachael Marise | SA | Merit | Research Project B | |