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.
| 569 | LE, Minh-Chau Hoang | SA | Merit | English | |
| 570 | LEAK, Ella | SA | Merit | Food and Hospitality | |
| 571 | LEE, Felicity Huey | SA | Merit | Psychology | |
| 572 | LEE, Isabel Wei-Yenn | SA | Merit | English | |
| 573 | LEE, Isabel Wei-Yenn | SA | Merit | Performance Special Study | |
| 574 | LEE, Tz-Shane | SA | Merit | English | |
| 575 | LEHMAN, Courtney Marie | SA | Merit | Biology | |
| 576 | LENG, Chanlini | SA | Merit | Khmer (Continuers) | |
| 577 | LESI, Edmario | SA | Merit | English Literary Studies | |
| 578 | LESI, Edmario | SA | Merit | Visual Arts - Art | |
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| 579 | LEUNG, Yiu Kai | SA | Merit | Essential English | |
| 580 | LEVINGS, Thomas Nigel | SA | Merit | Musicianship | |
| 581 | LEWIS, Alexandra | SA | Merit | English | |
| 582 | LEWIS, Cody Jane | SA | Merit | General Mathematics | |
| 583 | LEWIS, Rosalind Jane | SA | Merit | Tourism | |
| 584 | LEYDON, Ashleigh Renee | SA | Merit | Research Project B | |
| 585 | LI, Anna | SA | Merit | English | |
| 586 | LI, Heidi Xiao Fan | SA | Merit | English as an Additional Language | |
| 587 | LI, Jiayi (Sandy) | SA | Merit | English as an Additional Language | |
| 588 | LI, Longcheng | SA | Merit | Accounting | |
| 589 | LI, Longcheng | SA | Merit | English | |
| 590 | LI, Longcheng | SA | Merit | Mathematical Methods | |
| 591 | LI, Zixin | SA | Merit | General Mathematics | |
| 592 | LI, Zixin | SA | Merit | Psychology | |
| 593 | LIAO, Yebaihe | SA | Merit | Performance Special Study | |
| 594 | LIDUMS, Hugo | SA | Merit | Visual Arts - Design | |
| 595 | LIDUMS, Martins | SA | Merit | Chemistry | |
| 596 | LILL, Caleb Ben | SA | Merit | Biology | |
| 597 | LIM, Zi Jun | SA | Merit | Mathematical Methods | |
| 598 | LIMONGELLI, Olivia | SA | Merit | Research Project B | |
| 599 | LIN, Ben Jiayu | SA | Merit | Mathematical Methods | |
| 600 | LIN, Junying | SA | Merit | Accounting | |
| 601 | LIN, Junying | SA | Merit | Mathematical Methods | |
| 602 | LIN, Junying | SA | Merit | Specialist Mathematics | |
| 603 | LIN, Junying | SA | Merit | Workplace Practices | |
| 604 | LINDSAY, Eleanore Claire | SA | Merit | Research Project B | |
| 605 | LING, Sheridan | SA | Merit | Biology | |
| 606 | LING, Sheridan | SA | Merit | Mathematical Methods | |
| 607 | LING, Sheridan | SA | Merit | Specialist Mathematics | |
| 608 | LITTLE, Holly | SA | Merit | Ensemble Performance | |
| 609 | LIU, Lucinda | SA | Merit | Research Project B | |
| 610 | LIU, Yuqi | SA | Merit | Business and Enterprise | |
| 611 | LIU, Yuqi | SA | Merit | English as an Additional Language | |
| 612 | LIVORI, Jackson Mitchell | SA | Merit | Legal Studies | |
| 613 | LLOYD, Alison Judith | SA | Merit | English | |
| 614 | LLOYD, Alison Judith | SA | Merit | Research Project B | |
| 615 | LLOYD, Alison Judith | SA | Merit | Visual Arts - Art | |
| 616 | LOBOTESIS, Dionysios Nicholas | SA | Merit | English Literary Studies | |
| 617 | LOCK, Aidan | SA | Merit | Food and Hospitality | |
| 618 | LOCK-WEIR, Lewis Christopher | SA | Merit | Legal Studies | |