This is the SACE Honour Roll, listing every award, merit or prize won by South Australian SACE students in 2012, along with their school and subject details.
The report also includes significant Australian national awards and prizes such as the Australian Student Prize.
| 348 | Gadzhanova, Veronika | SA | Merit | English Communications | |
| 349 | Gadzhanova, Veronika | SA | Merit | Research Project B | |
| 350 | Galbraith, Kate | SA | Merit | Biology | |
| 351 | Gale, Lucy Catherine | Glenunga International High School | Glenunga | Gov of SA SACE Award | |
| 352 | Gall, Stephanie | SA | Merit | Biology | |
| 353 | Gambell, Adam | SA | Merit | Physics | |
| 354 | Garrard, Eleanor | SA | Merit | Business and Enterprise | |
| 355 | Garrard, Eleanor | SA | Merit | Physical Education | |
| 356 | Garrard, Eleanor Dawn | Loxton High School | Loxton | Gov of SA SACE Award | |
| 357 | Gassner, Justin | SA | Merit | Business and Enterprise | |
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| 358 | Gauci, Felyka | SA | Merit | Research Project B | |
| 359 | Gawkowski, Scarlett | SA | Merit | English Communications | |
| 360 | Gebhardt, Angus | SA | Merit | Physics | |
| 361 | Genockey, Emma | SA | Merit | Economics | |
| 362 | Georgonicas, Kayla | SA | Merit | Mathematical Applications | |
| 363 | Gieniec, Krystyna | SA | Merit | Research Project B | |
| 364 | Gillett, Ellen | SA | Merit | Research Project B | |
| 365 | Gleeson-Pongrac, Caitlin | SA | Merit | Biology | |
| 366 | Glidden, Sarah | SA | Merit | Psychology | |
| 367 | Gobell, Hayley | SA | Merit | Ensemble Performance | |
| 368 | Gobell, Hayley | SA | Merit | Solo Performance | |
| 369 | Goddard, Nicole | SA | Merit | Food and Hospitality | |
| 370 | Goggin, Nicholas | SA | Merit | Research Project B | |
| 371 | Golyala, Ambica | SA | Merit | Biology | |
| 372 | Golyala, Ambica | SA | Merit | English Studies | |
| 373 | Golyala, Ambica | SA | Merit | Research Project B | |
| 374 | Golyala, Ambica | Saint Ignatius College | Athelstone | Australian Student Prize | |
| 375 | Goodall, Tessa | SA | Merit | Drama | |
| 376 | Goodwin, Grace | SA | Merit | Chemistry | |
| 377 | Graetz, Cameron | SA | Merit | Physical Education | |
| 378 | Graetz, Ryan | SA | Merit | Australian History | |
| 379 | Gransbury, Thomas | SA | Merit | Mathematical Studies | |
| 380 | Grant, Joshua | SA | Merit | Research Project B | |
| 381 | Grant, Madison | SA | Merit | English Studies | |
| 382 | Grant, Madison | SA | Merit | Modern History | |
| 383 | Gray, Caitlin | SA | Merit | Chemistry | |
| 384 | Gray, Caitlin | SA | Merit | Physics | |
| 385 | Gray, Thomas | SA | Merit | Research Project B | |
| 386 | Green, Kayla | SA | Merit | Mathematical Applications | |
| 387 | Grenfell, Oliver | SA | Merit | Chemistry | |
| 388 | Gricks, Benjamin | SA | Merit | Physics | |
| 389 | Griffin, Charlotte | SA | Merit | Research Project B | |
| 390 | Grundy, Shae | SA | Merit | English Communications | |
| 391 | Gumbys, Matthew | SA | Merit | Mathematical Applications | |
| 392 | Gurner, Kathryn | SA | Merit | Biology | |
| 393 | Gurner, Kathryn | SA | Merit | English Communications | |
| 394 | Haig-Moir, Luke | SA | Merit | Biology | |
| 395 | Hall, Karinna | SA | Merit | English Studies | |
| 396 | Hall, Karinna Claire | Saint Ignatius College | Athelstone | Gov of SA SACE Award | |
| 397 | Hallam, Michael | SA | Merit | Mathematical Studies | |