This is the SACE Honour Roll, listing every award, merit or prize won by South Australian SACE students in 2005, along with their school and subject details.
The report also includes significant Australian national awards and prizes such as the Australian Student Prize.
| 544 | Lee-Gaston, Christopher Matthew | SA | Merit | Design Practical | |
| 545 | Lehmann, Madeline | SA | Merit | Business Studies | |
| 546 | Lemon, Jessica Rose | SA | Merit | English Studies | |
| 547 | Leow, Amy Wen-Li | SA | Merit | Legal Studies | |
| 548 | Leow, Amy Wen-Li | SA | Merit | Mathematical Studies | |
| 549 | Leung, Wing Sum | SA | Merit | Design Practical | |
| 550 | Lever, Evan James | SA | Merit | Classical Studies | |
| 551 | Lewis, Claire Naomi | SA | Merit | Nutrition | |
| 552 | Li, Si Ying (Joanna) | SA | Merit | Chinese (Background Speakers) | |
| 553 | Li, Yiru | SA | Merit | Chinese (Background Speakers) | |
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| 554 | Liedig, Bridget | SA | Merit | Business Studies | |
| 555 | Liedig, Bridget | SA | Merit | English Studies | |
| 556 | Liedig, Bridget | SA | Merit | Modern History | |
| 557 | Liedig, Bridget Ann | Wilderness School | Medindie | Australian Student Prize | |
| 558 | Lienert, Gemma Nicole | SA | Merit | Mathematical Applications | |
| 559 | Lim, Lauren Hui-Lin | SA | Merit | Chemistry | |
| 560 | Lim, Lauren Hui-Lin | SA | Merit | English Studies | |
| 561 | Lim, Lauren Hui-Lin | SA | Merit | Mathematical Studies | |
| 562 | Lim, Lauren Hui-Lin | SA | Merit | Physics | |
| 563 | Lim, Lauren Hui-Lin | SA | Merit | Specialist Mathematics | |
| 564 | Lim, Lauren Hui-Lin | Wilderness School | Medindie | Australian Student Prize | |
| 565 | Linley Slattery, Simone | SA | Merit | Solo Performance | |
| 566 | Lippett, Brittany Rae | SA | Merit | English Communications | |
| 567 | Lippett, Brittany Rae | SA | Merit | Geography Studies | |
| 568 | Lippett, Brittany Rae | SA | Merit | Mathematical Applications | |
| 569 | Lippett, Brittany Rae | SA | Merit | Modern History | |
| 570 | Lippett, Brittany Rae | Walford Anglican School for Girls | Hyde Park | Australian Student Prize | |
| 571 | Liu, Xinao | SA | Merit | Chinese (Continuers) | |
| 572 | Lloyd, Randall | SA | Merit | Design Practical | |
| 573 | Lloyd, Stephanie Michelle | SA | Merit | Desktop Publishing | |
| 574 | Longbottom, James | SA | Merit | Health, Recreation and the Community II | |
| 575 | Lopresti, Gesica | SA | Merit | Desktop Publishing | |
| 576 | Lord, Joanne | SA | Merit | Mathematical Applications | |
| 577 | Lord, Joanne | SA | Merit | Psychology | |
| 578 | Lorenzin, Emma Jillian | SA | Merit | Outdoor and Environmental Studies | |
| 579 | Loukes, Matthew Scott | SA | Merit | Legal Studies | |
| 580 | Lovell, Sarah Kate | SA | Merit | Tourism | |
| 581 | Lu, Xi Yun (Ally) | SA | Merit | Chemistry | |
| 582 | Lu, Xi Yun (Ally) | SA | Merit | Mathematical Studies | |
| 583 | Lu, Xi Yun (Ally) | SA | Merit | Physics | |
| 584 | Luks, Benjamin | SA | Merit | Philosophy | |
| 585 | Lum, Nicholas Wen | SA | Merit | Biology | |
| 586 | Lum, Nicholas Wen | SA | Merit | Legal Studies | |
| 587 | Lum, Nicholas Wen | SA | Merit | Psychology | |
| 588 | Lutze, Emily Kate | SA | Merit | Communication and the Community | |
| 589 | Luu, My Di | SA | Merit | Chemistry | |
| 590 | Luu, My Di | SA | Merit | Physics | |
| 591 | Ly, Christina | SA | Merit | Japanese (Continuers) | |
| 592 | Lyndell, Lyndell | SA | Merit | Aboriginal Studies | |
| 593 | Lyons, Henrietta Emily | SA | Merit | Physics | |