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.
| 840 | Radford, Kristian | SA | Merit | Mathematical Studies | |
| 841 | Rafalowicz, Josef | SA | Merit | Australian and International Politics | |
| 842 | Rafalowicz, Josef | SA | Merit | Drama Studies | |
| 843 | Rafalowicz, Josef | SA | Merit | Psychology | |
| 844 | Ralph, Alice | SA | Merit | Mathematical Applications | |
| 845 | Rankine, Damien | SA | Merit | Solo Performance | |
| 846 | Ravalico, Drew | SA | Merit | Physics | |
| 847 | Reeves, David Llewellyn | SA | Merit | Australian and International Politics | |
| 848 | Rego, Mariana Hank | SA | Merit | Tourism | |
| 849 | Reichstein, Emma Jane | SA | Merit | Foods and the Community I | |
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| 850 | Reid, Amy | SA | Merit | Environment and the Community II | |
| 851 | Reid, Amy | SA | Merit | Health, Recreation and the Community I | |
| 852 | Reilly, Melissa | SA | Merit | Ensemble Performance | |
| 853 | Rendell, Nicholas Ryan | SA | Merit | Tourism | |
| 854 | Ricciardi, Tahlia Louise | SA | Merit | Studies of Societies | |
| 855 | Rice, Alexandra Peta | SA | Merit | Drama Studies | |
| 856 | Richards, Emma Louise | SA | Merit | Physics | |
| 857 | Richards, Rebecca Marie | SA | Merit | Physical Education | |
| 858 | Richardson, Daniel | SA | Merit | Communication Products A | |
| 859 | Ridgway, Andrew Edward | SA | Merit | Material Products A | |
| 860 | Roach, Stacey Jane | SA | Merit | Early Childhood Studies | |
| 861 | Roberts, Daniel Colin | SA | Merit | Music Individual Study | |
| 862 | Roberts, Matthew Blake | SA | Merit | Biology | |
| 863 | Roberts, Matthew Blake | SA | Merit | Economics | |
| 864 | Robertson, Claire Alison | SA | Merit | Mathematical Applications | |
| 865 | Rogers, Alice Penelope | SA | Merit | English Communications | |
| 866 | Rogers, Courtney | SA | Merit | Biology | |
| 867 | Rogers, Nicholas Phillip | SA | Merit | English Communications | |
| 868 | Rose, Elisa | SA | Merit | English Communications | |
| 869 | Rose, Michelle Ellen | SA | Merit | Performance Special Study | |
| 870 | Rose, Michelle Ellen | SA | Merit | Solo Performance | |
| 871 | Rothall, Lincoln Maxwell | SA | Merit | English Communications | |
| 872 | Rothwell, Suzanna Jane | SA | Merit | English Communications | |
| 873 | Round, Vanessa | SA | Merit | Geography Studies | |
| 874 | Rowley, Michael | SA | Merit | Environment and the Community I | |
| 875 | Rudaks, Daina Mara | SA | Merit | Chemistry | |
| 876 | Rudaks, Daina Mara | SA | Merit | English Studies | |
| 877 | Rudd, Joan | SA | Merit | Arts and the Community I | |
| 878 | Rudduck, Annie | SA | Merit | Classical Studies | |
| 879 | Rudduck, Annie | SA | Merit | Visual Arts Studies | |
| 880 | Rule, Joshua | SA | Merit | Biology | |
| 881 | Russell, Laura Kathleen | SA | Merit | Visual Arts Studies | |
| 882 | Russet, Pascalle Louise | SA | Merit | French (Continuers) | |
| 883 | Rydon, Patrick Henry | SA | Merit | Ensemble Performance | |
| 884 | Rydon, Patrick Henry | SA | Merit | Musicianship | |
| 885 | Salandra, Susanna | SA | Merit | Accounting Studies | |
| 886 | Salandra, Susanna | SA | Merit | Economics | |
| 887 | Sampson, Jasmine | SA | Merit | Physical Education | |
| 888 | Samuel, Benedict V | SA | Merit | Studies of Religion | |
| 889 | Sarantaugas, Elena | SA | Merit | Accounting Studies | |