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.
| 546 | Kwon, Minha | SA | Merit | English as an Additional Language | |
| 547 | Kyriacou, Nicholas Jack | SA | Merit | Research Project B | |
| 548 | Lac, Carmen | SA | Merit | English Literary Studies | |
| 549 | Lafosse, Franca | SA | Merit | Visual Arts - Design | |
| 550 | Lam, Jonathan | SA | Merit | Essential Mathematics | |
| 551 | Lam, Jonathan | SA | Merit | Workplace Practices | |
| 552 | Lam, Stephanie | SA | Merit | Biology | |
| 553 | Lam, Stephanie | SA | Merit | Chemistry | |
| 554 | Lam, Stephanie | SA | Merit | Mathematical Methods | |
| 555 | Lam, Tien Nhat | SA | Merit | Mathematical Methods | |
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| 556 | Lamberto, Claudia | SA | Merit | Research Project B | |
| 557 | Landolfi, Carla Lee | SA | Merit | Business and Enterprise | |
| 558 | Lane, Emma | SA | Merit | Physical Education | |
| 559 | Lange, Serena Holly | SA | Merit | Psychology | |
| 560 | Lange, Serena Holly | SA | Merit | Research Project B | |
| 561 | Laparidis, George Nectarios | SA | Merit | Workplace Practices | |
| 562 | Laparidis, John Alexander | SA | Merit | Research Project B | |
| 563 | Lapkova, Aleksandra | SA | Merit | Biology | |
| 564 | Lara, Reya | SA | Merit | Child Studies | |
| 565 | Larkin, Jackson | SA | Merit | Integrated Learning A | |
| 566 | Lattanzio, Porsche | SA | Merit | Research Project B | |
| 567 | Laurendi, Olivia Grace | SA | Merit | Psychology | |
| 568 | Law, Olivia | SA | Merit | Business and Enterprise | |
| 569 | Lawrence, Katie Sarah | SA | Merit | Research Project B | |
| 570 | Le, Jasmin Chau Minh | SA | Merit | General Mathematics | |
| 571 | Le, Minh Thanh | SA | Merit | Mathematical Methods | |
| 572 | Le-Tran, Huy | SA | Merit | Research Project B | |
| 573 | Le-Tran, Huy | Salisbury High School | Salisbury North | Gov of SA SACE Award | |
| 574 | Leak, Ella | SA | Merit | English | |
| 575 | Leak, Ella | SA | Merit | Research Project B | |
| 576 | Leak, Ella | SA | Merit | Visual Arts - Art | |
| 577 | Leake, Lachlan Benjamin | SA | Merit | Research Project B | |
| 578 | Lee, Felicity Huey | SA | Merit | English | |
| 579 | Lee, Felicity Huey | SA | Merit | Research Project B | |
| 580 | Lee, Jack Robert | SA | Merit | Economics | |
| 581 | Lee, Jack Robert | SA | Merit | English | |
| 582 | Lee, Sue Ven | SA | Merit | General Mathematics | |
| 583 | Leeflang, Julia | SA | Merit | Psychology | |
| 584 | Lehmann, Isabella Rochelle | SA | Merit | English | |
| 585 | Lehmann, Isabella Rochelle | SA | Merit | Physical Education | |
| 586 | Lepore, Rosa | SA | Merit | Integrated Learning A | |
| 587 | Letheby, Laura | SA | Merit | Modern History | |
| 588 | Lew, Wei Yi | SA | Merit | Mathematical Methods | |
| 589 | Lew, Wei Yi | SA | Merit | Physics | |
| 590 | Lewis, Elvin Harper | SA | Merit | English | |
| 591 | Leydon, Jemima Grace | SA | Merit | Research Project B | |
| 592 | Lidums, Martins | SA | Merit | General Mathematics | |
| 593 | Lietz, Evelyn | SA | Merit | German (Continuers) | |
| 594 | Lim, Helaiza Faye Bande | SA | Merit | Visual Arts - Art | |
| 595 | Lim, Yiing Fen (Jocelyn) | SA | Merit | Biology | |