This is the SACE Honour Roll, listing every award, merit or prize won by South Australian SACE students in 2020, along with their school and subject details.
The report also includes significant Australian national awards and prizes such as the Australian Student Prize.
| 565 | Khurram, Rushan | SA | Merit | Physics | |
| 566 | Kieu, Hannah Nogoc-Han | SA | Merit | Essential Mathematics | |
| 567 | Kilgariff-Johnson, Luka Dillon | SA | Merit | Music Explorations | |
| 568 | Kilkenny-Jones, Constance | Heathfield High School | Heathfield | Gov of SA SACE Award | |
| 569 | Kim, Daniel | SA | Merit | Research Project B | |
| 570 | Kim, Julie Jimin | SA | Merit | English | |
| 571 | Kim, Julie Jimin | SA | Merit | Research Project B | |
| 572 | Kim, Minseo | SA | Merit | Research Project B | |
| 573 | Kimber, Felix | Saint Ignatius College | Athelstone | Prize: Tennyson Medal | English Studies |
| 574 | Kimber, Felix Richard | SA | Merit | Ancient Studies | |
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| 575 | Kimber, Felix Richard | SA | Merit | English Literary Studies | |
| 576 | Kimber, Felix Richard | SA | Merit | Modern History | |
| 577 | Kimber, Felix Richard | SA | Merit | Research Project B | |
| 578 | King, Sophie | SA | Merit | Society and Culture | |
| 579 | King, Trinity Brenelle | SA | Merit | Psychology | |
| 580 | King, Trinity Brenelle | SA | Merit | Visual Arts - Art | |
| 581 | Kirkby, Lara | SA | Merit | Business Innovation | |
| 582 | Kirkby, Lara | SA | Merit | English | |
| 583 | Kleemann, Jorjia | SA | Merit | Religion Studies | |
| 584 | Kleinig, Oliver | St Peters College | St Peters | Gov of SA SACE Award | |
| 585 | Kleinig, Oliver Saba | SA | Merit | Chemistry | |
| 586 | Kleinig, Oliver Saba | SA | Merit | English | |
| 587 | Kleinig, Oliver Saba | SA | Merit | Legal Studies | |
| 588 | Kleinig, Oliver Saba | SA | Merit | Mathematical Methods | |
| 589 | Kleinig, Oliver Saba | SA | Merit | Specialist Mathematics | |
| 590 | Kleinig, Taj Branden | SA | Merit | Research Project B | |
| 591 | Klose, Jessica Lee | SA | Merit | Research Project B | |
| 592 | Knight, Lucy Jayne | SA | Merit | Chemistry | |
| 593 | Knight, Lucy Jayne | SA | Merit | Physics | |
| 594 | Kolta, Kerelos Kolta | SA | Merit | Psychology | |
| 595 | Komolafe, Olufunto | SA | Merit | General Mathematics | |
| 596 | Kong, Xinyu | SA | Merit | Biology | |
| 597 | Kountourogiannis, Ekaterini | SA | Merit | English | |
| 598 | Koutlakis, Orahnia | SA | Merit | English | |
| 599 | Kovacevic, Nadia | SA | Merit | Research Project B | |
| 600 | Krishnan, Sujit | SA | Merit | Specialist Mathematics | |
| 601 | Ktoris, Thomas | SA | Merit | Research Project B | |
| 602 | Kulinski, Siena | SA | Merit | Business Innovation | |
| 603 | Kuys, Shakira-Ann | SA | Merit | Research Project B | |
| 604 | Kyros, Kate | SA | Merit | Physical Education | |
| 605 | Lacy, Madison | SA | Merit | English Literary Studies | |
| 606 | Lagana, Alyssa | SA | Merit | Psychology | |
| 607 | Lam, Caitlyn | SA | Merit | Research Project B | |
| 608 | Lam, Tien Nhat | SA | Merit | Chemistry | |
| 609 | Lane, Brandon Thomas | SA | Merit | Physics | |
| 610 | Lane, Imogen Airdrie | SA | Merit | Research Project B | |
| 611 | Langsmith, Angus Edward | SA | Merit | Agricultural Systems | |
| 612 | Larobina, Isabella Michelle | SA | Merit | Religion Studies | |
| 613 | Larobina, Isabella Michelle | SA | Merit | Research Project B | |
| 614 | Larwood, Ivy | SA | Merit | Italian (Continuers) | |