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.
| 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 | |
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| 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 | |
| 486 | Hood, Jessica | SA | Merit | Legal Studies | |
| 487 | Hood, Zoe Kate | SA | Merit | Physical Education | |
| 488 | Hood, Zoe Kate | SA | Merit | Research Project B | |
| 489 | Hooper, Scarlett | SA | Merit | English | |
| 490 | Horbelt, Samantha Jane | SA | Merit | Society and Culture | |
| 491 | Horbelt, Zachary David | SA | Merit | Mathematical Methods | |
| 492 | Hore, Blake | SA | Merit | Chemistry | |
| 493 | Hore, Blake | SA | Merit | Physics | |
| 494 | Horton, Emilie | SA | Merit | Research Project B | |
| 495 | Howes, Kayla | SA | Merit | Health | |
| 496 | Hsi, Arabelle Zoe | SA | Merit | Psychology | |
| 497 | Hughes, Caitlin | SA | Merit | Child Studies | |
| 498 | Hughes, Samantha | SA | Merit | Health | |
| 499 | Hughes, William Armstrong | SA | Merit | Society and Culture | |
| 500 | Humphries, Ella | SA | Merit | General Mathematics | |
| 501 | Hunter, Georgia Soleil | SA | Merit | General Mathematics | |
| 502 | Hunter, Phoebe Jean | SA | Merit | Biology | |
| 503 | Hunter, Phoebe Jean | SA | Merit | Chemistry | |
| 504 | Hunter, Phoebe Jean | SA | Merit | Research Project B | |
| 505 | Hunter, William | Kadina Memorial School | Kadina | Gov of SA SACE Award | |
| 506 | Huo, Catherine | SA | Merit | English as an Additional Language | |
| 507 | Huo, Catherine | SA | Merit | Mathematical Methods | |
| 508 | Huo, Catherine | SA | Merit | Physics | |
| 509 | Hurn, Ethan James Reynolds | SA | Merit | Food and Hospitality | |
| 510 | Hushen, Austin Byron | SA | Merit | Integrated Learning B | |
| 511 | Hussaini, Zakia | SA | Merit | English | |
| 512 | Huynh, Amy | SA | Merit | English | |
| 513 | Huynh, Kyle | SA | Merit | Mathematical Methods | |
| 514 | Hynes, Emma | SA | Merit | Research Project B | |
| 515 | Ing, Wendy | SA | Merit | Research Project B | |
| 516 | Ingham, Imogen Anais | SA | Merit | Geography | |
| 517 | Ireland, Georgia | SA | Merit | General Mathematics | |
| 518 | Ismail, Lela | SA | Merit | Research Project A | |
| 519 | Itsines, Katie Leigh | SA | Merit | Research Project B | |