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.
| 1 | Portelli, Taylor | Eynesbury Senior College | Adelaide | Gov of SA SACE Award | |
| 2 | Penberthy, Sophie | Pulteney Grammar School | Adelaide | Prize: John Lewis Medal and Prize | Geography |
| 3 | Dalton, Catherine | St Marys College | Adelaide | Gov of SA SACE Award | |
| 4 | Hansch-Maher, Silas | Saint Ignatius College | Athelstone | Gov of SA SACE Award | |
| 5 | Kimber, Felix | Saint Ignatius College | Athelstone | Prize: Tennyson Medal | English Studies |
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| 6 | Bennett, Grace | Playford International College | Elizabeth | Gov of SA SACE Award | |
| 7 | Sutton, David | Xavier College Gawler Belt Campus | Gawler Belt | Gov of SA SACE Award | |
| 8 | Kilkenny-Jones, Constance | Heathfield High School | Heathfield | Gov of SA SACE Award | |
| 9 | Stefanopoulos, Paras | St Michaels College | Henley Beach | Gov of SA SACE Award | |
| 10 | Theodorakakos, Martina | Walford Anglican School for Girls | Hyde Park | Gov of SA SACE Award | |
| 11 | Walker, Olivia | Walford Anglican School for Girls | Hyde Park | Gov of SA SACE Award | |
| 12 | Hunter, William | Kadina Memorial School | Kadina | Gov of SA SACE Award | |
| 13 | Nitschke, Samuel | Loxton High School | Loxton | Gov of SA SACE Award | |
| 14 | Liptak, Ruby | Westminster School | Marion | Gov of SA SACE Award | |
| 15 | Sellvakumaran, Sidhaarath | Westminster School | Marion | Gov of SA Excellence in Modified SACE Award | |
| 16 | McKay, Kate | Loreto College | Marryatville | Gov of SA SACE Award | |
| 17 | Baran, Emmanuella | Wilderness School | Medindie | Prize: Annie Montgomerie Martin Prize and Medal for French | French |
| 18 | Beinssen, Meg | Wilderness School | Medindie | Prize: John Lewis Medal and Prize | Geography |
| 19 | Matthias, Greta | Modbury High School | Modbury | Gov of SA SACE Award | |
| 20 | Hinze, Emily | Cornerstone College | Mount Barker | Gov of SA SACE Award | |
| 21 | Davis, Aidyn | Naracoorte High School | Naracoorte | Gov of SA SACE Award | |
| 22 | Ho, Kylie | Unley High School | Netherby | Gov of SA SACE Award | |
| 23 | Christone, Filbert | Portside Christian College | New Port | Gov of SA SACE Award | |
| 24 | Connolly, Gabrielle | Cardijn College Marian Campus | Noarlunga Downs | Gov of SA SACE Award | |
| 25 | Weetra, Wesley | Cardijn College Marian Campus | Noarlunga Downs | Gov of SA SACE Award | |