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.
| 780 | O'Brien, Matthew | SA | Merit | Composing and Arranging | |
| 781 | O'Brien, Matthew | SA | Merit | Ensemble Performance | |
| 782 | O'Brien, Thomas | SA | Merit | English Communications | |
| 783 | O'Callaghan, Molly | SA | Merit | Physics | |
| 784 | O'Callaghan, Molly | SA | Merit | Specialist Mathematics | |
| 785 | O'Connell, Alice | SA | Merit | Research Project B | |
| 786 | O'Connell, Alice | SA | Merit | Spanish (Beginners) | |
| 787 | O'Farrell White, Brigid Mahdi Jane | SA | Merit | Vocational Studies B | |
| 788 | O'Leary-Rutherford, Benedicte | SA | Merit | English Studies | |
| 789 | O'Leary-Rutherford, Benedicte | SA | Merit | Research Project B | |
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| 790 | O'Loughlin, Kyra | SA | Merit | Integrated Learning | |
| 791 | O'Toole, Ciara | SA | Merit | Research Project B | |
| 792 | Oh, Seung Youl | SA | Merit | Mathematical Studies | |
| 793 | Oklobdzija, Anna | SA | Merit | English Communications | |
| 794 | Ong, Michellee | SA | Merit | Chinese (Continuers) | |
| 795 | Opie, Emma Jane Mary | SA | Merit | Vocational Studies B | |
| 796 | Owen, Lauren | SA | Merit | Child Studies | |
| 797 | Owen-Thomas, Benjamin | SA | Merit | Legal Studies | |
| 798 | Padget, Sarah | SA | Merit | English Communications | |
| 799 | Page, Caitlyn | SA | Merit | Biology | |
| 800 | Page, Caitlyn | SA | Merit | Research Project B | |
| 801 | Page, Elyse | SA | Merit | Information Processing and Publishing | |
| 802 | Pager, Chol | SA | Merit | English as a Second Language | |
| 803 | Pager, Chol | SA | Merit | Religion Studies | |
| 804 | Pager, Chol | SA | Merit | Research Project B | |
| 805 | Pager, Chol | SA | Merit | Workplace Practices | |
| 806 | Pager, Chol | Nazareth Catholic College | Flinders Park | Australian Student Prize | |
| 807 | Palasis, Kathryn | SA | Merit | Chemistry | |
| 808 | Palasis, Kathryn | SA | Merit | Mathematical Studies | |
| 809 | Palasis, Kathryn Angela | Walford Anglican School for Girls | Hyde Park | Gov of SA SACE Award | |
| 810 | Papantoniou, Maddison | SA | Merit | Mathematical Applications | |
| 811 | Parisotto, Anthony | SA | Merit | Research Project B | |
| 812 | Park, Amy | SA | Merit | Integrated Learning | |
| 813 | Park, Amy | SA | Merit | Research Project B | |
| 814 | Park, Amy | Unley High School | Netherby | Gov of SA SACE Award | |
| 815 | Parker, Jessica | SA | Merit | Physics | |
| 816 | Parkinson, Angus | SA | Merit | Accounting | |
| 817 | Parkinson, Angus | SA | Merit | English Communications | |
| 818 | Parsons, Chelsea | SA | Merit | Psychology | |
| 819 | Parsons, Kahla | SA | Merit | Arts and the Community | |
| 820 | Pass, Jade | SA | Merit | Research Project B | |
| 821 | Pass, Jade | Loreto College | Marryatville | Gov of SA Aboriginal Student SACE Award | |
| 822 | Patil, Sanjana | SA | Merit | English Studies | |
| 823 | Pearce, Jacob | SA | Merit | Mathematical Studies | |
| 824 | Pearson, Jonathan | SA | Merit | Physics | |
| 825 | Pegler, Andi-Claire | SA | Merit | English Communications | |
| 826 | Pegler, Andi-Claire | SA | Merit | Mathematical Applications | |
| 827 | Pegler, Andi-Claire | SA | Merit | Research Project B | |
| 828 | Pegler, Emma | SA | Merit | Mathematical Applications | |
| 829 | Pellegrini, Giorgia | SA | Merit | Italian (Continuers) | |