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.
| 436 | Hartell, Charlotte | SA | Merit | Psychology | |
| 437 | Harvey, Ashleigh | SA | Merit | Research Project B | |
| 438 | Hasnat, Adnan | SA | Merit | Legal Studies | |
| 439 | Hasnat, Adnan | SA | Merit | Physics | |
| 440 | Hastings, Olivia Rose | SA | Merit | Psychology | |
| 441 | Hastings, Olivia Rose | SA | Merit | Research Project B | |
| 442 | Hately, Aiden | SA | Merit | Psychology | |
| 443 | Hawker, Jessica | SA | Merit | Biology | |
| 444 | Hawker, Jessica | SA | Merit | Research Project B | |
| 445 | Healey, Alice | SA | Merit | English Literary Studies | |
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| 446 | Healey, Alice | SA | Merit | Research Project B | |
| 447 | Hean, Sopheara | SA | Merit | General Mathematics | |
| 448 | Heathershaw, Sam | Woodville High School | St Clair | Gov of SA SACE Award | |
| 449 | Heaver, Trent | SA | Merit | Biology | |
| 450 | Heaver, Trent | SA | Merit | Chemistry | |
| 451 | Heaver, Trent | SA | Merit | Physics | |
| 452 | Heaver, Trent | Kings Baptist Grammar School | Wynn Vale | Gov of SA SACE Award | |
| 453 | Heinrich, Meshach | SA | Merit | Digital Communication Solutions | |
| 454 | Helbig, Alana Grace | SA | Merit | Biology | |
| 455 | Helbig, Alana Grace | SA | Merit | Chemistry | |
| 456 | Helbig, Alana Grace | SA | Merit | Research Project B | |
| 457 | Henderson, Victoria | SA | Merit | Research Project B | |
| 458 | Hendrie, Jaydan Donald | SA | Merit | Research Project B | |
| 459 | Henry, Eimear | SA | Merit | Biology | |
| 460 | Henry, Eimear | SA | Merit | Research Project B | |
| 461 | Hill, Annabelle | SA | Merit | Information Processing and Publishing | |
| 462 | Hill, Hannah | SA | Merit | Business Innovation | |
| 463 | Hill, Summer | SA | Merit | Research Project B | |
| 464 | Hill, Thomas | SA | Merit | Integrated Learning A | |
| 465 | Hill, Thomas | SA | Merit | Psychology | |
| 466 | Hinton, Isaac Joseph | SA | Merit | Research Project B | |
| 467 | Hinze, Emily | Cornerstone College | Mount Barker | Gov of SA SACE Award | |
| 468 | Hinze, Emily Claire | SA | Merit | Physics | |
| 469 | Hinze, Emily Claire | SA | Merit | Research Project B | |
| 470 | Hislop, Tara | SA | Merit | Research Project B | |
| 471 | Hissaria, Sanyukta | SA | Merit | Essential Mathematics | |
| 472 | Hissey, Chloe | SA | Merit | General Mathematics | |
| 473 | Ho, Kylie | SA | Merit | Chemistry | |
| 474 | Ho, Kylie | Unley High School | Netherby | Gov of SA SACE Award | |
| 475 | Hobbs, Ella Kathryn | SA | Merit | Food and Hospitality | |
| 476 | Hocking, Emma Maree | SA | Merit | General Mathematics | |
| 477 | Hoe, Isaac Jun Xian | SA | Merit | Chemistry | |
| 478 | Hoe, Isaac Jun Xian | SA | Merit | English | |
| 479 | Hoe, Isaac Jun Xian | SA | Merit | Mathematical Methods | |
| 480 | Hoffmann, Axel Martin | SA | Merit | Digital Technologies | |
| 481 | Holmes, Alexandra Maddison | SA | Merit | English | |
| 482 | Holtze, Amelia | SA | Merit | Research Project B | |
| 483 | Homer, Ella Louise | SA | Merit | Music Explorations | |
| 484 | Honeychurch, Tahlia | SA | Merit | Research Project B | |
| 485 | Hong, Trinity | SA | Merit | Physical Education | |