This is the SACE Honour Roll, listing every award, merit or prize won by South Australian SACE students in 2023, along with their school and subject details.
The report also includes significant Australian national awards and prizes such as the Australian Student Prize.
| 398 | Gagliardi, Aleisha | SA | Merit | Research Project B | |
| 399 | Gallomarino, Isabella Nicole Mei | SA | Merit | Chemistry | |
| 400 | Gandhi, Maansi | SA | Merit | Research Project B | |
| 401 | Gao, Xiyue | SA | Merit | Activating Identities and Futures | |
| 402 | Garcia-Bellido, Nicolas | SA | Merit | General Mathematics | |
| 403 | Gardiner, Sophie | SA | Merit | Workplace Practices | |
| 404 | Gardiner, William | SA | Merit | Research Project B | |
| 405 | Gardonyi-Kovacs, Panna | SA | Merit | Research Project B | |
| 406 | Garfi, Simone | SA | Merit | Italian (Continuers) | |
| 407 | Garrood, Ella | SA | Merit | General Mathematics | |
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| 408 | Gautier, Bronwyn Claire | SA | Merit | English Literary Studies | |
| 409 | Gawkowski, Isabelle Chloe | SA | Merit | Health and Wellbeing | |
| 410 | Gell, Caitlyn | SA | Merit | General Mathematics | |
| 411 | Ghaly, Malak | SA | Merit | Activating Identities and Futures | |
| 412 | Gianquitto, Sebastian | SA | Merit | Cross-Disciplinary Studies | |
| 413 | Gibney, Abbie | SA | Merit | Research Project B | |
| 414 | Gilbert, Lewis James | SA | Merit | Mathematical Methods | |
| 415 | Gilbert, Lewis James | SA | Merit | Research Project B | |
| 416 | Gilbert, Lewis James | SA | Merit | Specialist Mathematics | |
| 417 | Gilgen, Dylan John | SA | Merit | Business Innovation | |
| 418 | Gill, Laura Mackenzie | SA | Merit | Child Studies | |
| 419 | Gillespie, Sadie Ada Caroline | SA | Merit | Research Project B | |
| 420 | Giotis, Emily Allison | SA | Merit | Chemistry | |
| 421 | Giotis, Emily Allison | SA | Merit | Essential Mathematics | |
| 422 | Giotis, Emily Allison | SA | Merit | Integrated Learning B | |
| 423 | Girardi, Jade | SA | Merit | Child Studies | |
| 424 | Glasson, Harry James | SA | Merit | Activating Identities and Futures | |
| 425 | Gobell, Lucy Frances | SA | Merit | Biology | |
| 426 | Goh, Emmanuel Xin Liang | SA | Merit | English | |
| 427 | Goh, Zhuo Xun | SA | Merit | Physics | |
| 428 | Golding, Freya Maria | SA | Merit | Legal Studies | |
| 429 | Gooi, Emily Wen Shuen | SA | Merit | Mathematical Methods | |
| 430 | Goold, Henry | SA | Merit | Digital Communication Solutions | |
| 431 | Gordo, Wanika Reese | SA | Merit | English | |
| 432 | Gosse, Amelia Sophie | SA | Merit | Activating Identities and Futures | |
| 433 | Gouws, Anthony | SA | Merit | Physics | |
| 434 | Grasser, Jessica Lauren | SA | Merit | Ancient Studies | |
| 435 | Grasser, Jessica Lauren | SA | Merit | English Literary Studies | |
| 436 | Grasser, Jessica Lauren | SA | Merit | Modern History | |
| 437 | Grasser, Jessica Lauren | SA | Merit | Politics, Power and People | |
| 438 | Gray, Jarrod | SA | Merit | General Mathematics | |
| 439 | Green, Aidan Malcolm | SA | Merit | Accounting | |
| 440 | Green, Erin | SA | Merit | Research Project B | |
| 441 | Greenslade, Tomas | SA | Merit | Activating Identities and Futures | |
| 442 | Gregory, Bethany | SA | Merit | Research Project B | |
| 443 | Greig, Arabelle Lilly | SA | Merit | Research Project B | |
| 444 | Grether, Jasmine Annalise | SA | Merit | Child Studies | |
| 445 | Grether, Jasmine Annalise | SA | Merit | English Literary Studies | |
| 446 | Grether, Jasmine Annalise | SA | Prize: Tennyson Medal | English Studies | |
| 447 | Griffiths, Anabel | SA | Merit | Research Project B | |