This is the SACE Honour Roll, listing every award, merit or prize won by South Australian SACE students in 2005, along with their school and subject details.
The report also includes significant Australian national awards and prizes such as the Australian Student Prize.
| 703 | Nakahara, Hisashi | SA | Merit | Musicianship | |
| 704 | Nakahara, Hisashi | SA | Merit | Performance Special Study | |
| 705 | Nash, Jessica Moya | SA | Merit | Arts and the Community | |
| 706 | Nastasie, Michael Sergiu | SA | Merit | Biology | |
| 707 | Neumann, Kylie Ann | SA | Merit | Ensemble Performance | |
| 708 | Neves, Catarina | SA | Merit | Religions in Australia | |
| 709 | Neville, Meleah Alexandra | SA | Merit | English Communications | |
| 710 | Neville, Meleah Alexandra | SA | Merit | Modern History | |
| 711 | Newall, Hannah | SA | Merit | Music Individual Study | |
| 712 | Newman, William | SA | Merit | Information Technology Studies | |
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| 713 | Newstead, Kellie | SA | Merit | Mathematical Applications | |
| 714 | Newton, Kathryn Anne | SA | Merit | Early Childhood Studies | |
| 715 | Ngu, The Kim | SA | Merit | Business Documents | |
| 716 | Nguyen, Mai-Chi | SA | Merit | Physics | |
| 717 | Nguyen, Phillip | SA | Merit | Mathematical Studies | |
| 718 | Nguyen, Phillip | SA | Merit | Specialist Mathematics | |
| 719 | Nguyen, Thi Thanh Mai | SA | Merit | Mathematical Studies | |
| 720 | Nguyen, Tri Hung | SA | Merit | Mathematical Studies | |
| 721 | Nguyen, Tri Hung | SA | Merit | Specialist Mathematics | |
| 722 | Nicholas, John James | SA | Merit | Material Products B | |
| 723 | Nicholls, Lachlan James | SA | Merit | Physics | |
| 724 | Nicholls, Lachlan James | SA | Merit | Specialist Mathematics | |
| 725 | Nicolas, Alexandra Kathryn | SA | Merit | Nutrition | |
| 726 | Nita, Irina Maria | SA | Merit | Dance | |
| 727 | Nitschke, Jessica | SA | Merit | Small Business Enterprise | |
| 728 | Noack, Jessica Anne | SA | Merit | Craft Practical | |
| 729 | Noble, Michael David | SA | Merit | Agricultural and Horticultural Management | |
| 730 | Noble, Michael David | SA | Merit | Agricultural and Horticultural Principles | |
| 731 | Noble, Michael David | SA | Merit | Natural Resources Management | |
| 732 | Nolan, Ashleigh Patricia | SA | Merit | Biology | |
| 733 | Nolan, Ashleigh Patricia | SA | Merit | English Studies | |
| 734 | Nolan, Ashleigh Patricia | SA | Merit | Legal Studies | |
| 735 | Nolan, Ashleigh Patricia | SA | Merit | Modern History | |
| 736 | Nolan, Ashleigh Patricia | St Peters Girls School | Stonyfell | Australian Student Prize | |
| 737 | Noll, Lisa Kate | SA | Merit | English Communications | |
| 738 | Noor, Anthony | SA | Merit | Chemistry | |
| 739 | Noor, Anthony | SA | Merit | Physics | |
| 740 | Norman, Catherine Anne | SA | Merit | Biology | |
| 741 | Norman, Catherine Anne | SA | Merit | English Studies | |
| 742 | Norton, Chantel | SA | Merit | Arts and the Community | |
| 743 | Nowland, Pia Caroline | SA | Merit | English Communications | |
| 744 | O'Brien, Bethany | SA | Merit | Modern History | |
| 745 | O'Brien, Bethany | SA | Merit | Studies of Societies | |
| 746 | O'Donnell, Jarryd Scott | SA | Merit | Geography Studies | |
| 747 | O'Loughlin, Nicholas Charles | SA | Merit | Mathematical Studies | |
| 748 | O'Malley, Elyse-Ann | SA | Merit | Mathematical Studies | |
| 749 | O'Malley, Elyse-Ann | SA | Merit | Physics | |
| 750 | O'Malley, Elyse-Ann | SA | Merit | Specialist Mathematics | |
| 751 | O'Malley, Elyse-Ann Caitlin | Loreto College | Marryatville | Australian Student Prize | |
| 752 | O'Riley, Charee | SA | Merit | Australian History | |