This is the SACE Honour Roll, listing every award, merit or prize won by South Australian SACE students in 2019, along with their school and subject details.
The report also includes significant Australian national awards and prizes such as the Australian Student Prize.
| 617 | Lovas-Tiong, Angela | SA | Merit | Mathematical Methods | |
| 618 | Lovat, Samuel Jackson | SA | Merit | Chemistry | |
| 619 | Lovat, Samuel Jackson | SA | Merit | Mathematical Methods | |
| 620 | Loveday, Lillian Jaye | SA | Merit | Drama | |
| 621 | Low, Ethan | SA | Merit | Chemistry | |
| 622 | Low, Ethan | SA | Merit | Mathematical Methods | |
| 623 | Lowe, Angelique Veronica | SA | Merit | Tourism | |
| 624 | Lowe, Harriette | SA | Merit | Biology | |
| 625 | Lowe, Harriette | SA | Merit | General Mathematics | |
| 626 | Lowe, Harriette | SA | Merit | Geography | |
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| 627 | Lowe, Harriette | Wilderness School | Medindie | Prize: John Lewis Medal and Prize | Geography |
| 628 | Loy, Gabriella Rose | SA | Merit | Outdoor Education | |
| 629 | Lu, Brendan Qinghui | SA | Merit | Specialist Mathematics | |
| 630 | Lu, Jinyue | SA | Merit | Business and Enterprise | |
| 631 | Lucey, Sebastian George | SA | Merit | Food and Hospitality | |
| 632 | Luke, Isabella | SA | Merit | Research Project B | |
| 633 | Lumbers, Sofia | SA | Merit | Physical Education | |
| 634 | Luthra, Anchal | SA | Merit | Communication Products II | |
| 635 | Luthra, Anchal | SA | Merit | Visual Arts - Design | |
| 636 | Luu, Yasmin | SA | Merit | Research Project B | |
| 637 | Mackenzie, Charlotte | SA | Merit | Biology | |
| 638 | Mackenzie, Charlotte | SA | Merit | Mathematical Methods | |
| 639 | Mackenzie, Charlotte | SA | Merit | Specialist Mathematics | |
| 640 | Mackereth, Lily | SA | Merit | English | |
| 641 | Mackereth, Toby | SA | Merit | English | |
| 642 | Mackereth, Toby | SA | Merit | Modern History | |
| 643 | Macvicar, Andrea | SA | Merit | Research Project B | |
| 644 | Madike, Reema | SA | Merit | English | |
| 645 | Madike, Reema | SA | Merit | Geography | |
| 646 | Mahajan, Akanksha | SA | Merit | Biology | |
| 647 | Mahajan, Akanksha | SA | Merit | Chemistry | |
| 648 | Mahajan, Akanksha | SA | Merit | Mathematical Methods | |
| 649 | Mahajan, Akanksha | SA | Merit | Physics | |
| 650 | Maida, Daniel | SA | Merit | English | |
| 651 | Maida, Daniel | SA | Merit | Integrated Learning A | |
| 652 | Mangi, Muhammad Faraz | SA | Merit | Research Project B | |
| 653 | Mangla, Aaditya | SA | Merit | Physics | |
| 654 | Manning, Mason Harvey | SA | Merit | Mathematical Methods | |
| 655 | Manocchio, Paul Antoni | SA | Merit | Material Products II | |
| 656 | Marcus, Juliana Maria | SA | Merit | General Mathematics | |
| 657 | Margach, Cameron Eric | SA | Merit | Research Project B | |
| 658 | Markos, Victoria | SA | Merit | Communication Products I | |
| 659 | Martin, Daniel | SA | Merit | General Mathematics | |
| 660 | Masullo, Alexia-Mia | SA | Merit | Essential English | |
| 661 | Matters, Alexander | SA | Merit | Modern History | |
| 662 | Mauviel, Lucy | SA | Merit | Biology | |
| 663 | Mauviel, Lucy | SA | Merit | Chemistry | |
| 664 | Mauviel, Lucy | SA | Merit | English | |
| 665 | Mauviel, Lucy | SA | Merit | Mathematical Methods | |
| 666 | Mauviel, Lucy | SA | Merit | Specialist Mathematics | |