This is the SACE Honour Roll, listing every award, merit or prize won by South Australian SACE students in 2018, along with their school and subject details.
The report also includes significant Australian national awards and prizes such as the Australian Student Prize.
| 855 | RICE, Adam Vinod | SA | Merit | Mathematical Methods | |
| 856 | RICHARDSON, Emma Bonte | SA | Merit | English Literary Studies | |
| 857 | RICHARDSON, Emma Bonte | SA | Merit | Solo Performance | |
| 858 | RICHARDSON, Mackenzy Jayde | SA | Merit | Biology | |
| 859 | RIGBY, Dominique | SA | Merit | Drama | |
| 860 | RIMINGTON, Jessica Bella | SA | Merit | Integrated Learning A | |
| 861 | RIMMER, Brodie Samuel | SA | Merit | General Mathematics | |
| 862 | RISCHMILLER, Harry Paul | SA | Merit | Systems and Control Products I | |
| 863 | ROBERTS, Charlie Peter | SA | Merit | Workplace Practices | |
| 864 | ROBERTS, Jo Anne | SA | Merit | Biology | |
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| 865 | ROBERTSON, Caitlin Lee | SA | Merit | Research Project B | |
| 866 | ROBINSON, Lucille Pearl | SA | Merit | General Mathematics | |
| 867 | ROGERS, Sophie Isabella | SA | Merit | Material Products I | |
| 868 | ROMEO, Elise | SA | Merit | Child Studies | |
| 869 | ROSENZWEIG, Izabella | SA | Merit | Physics | |
| 870 | ROSENZWEIG, Jake Matthew | SA | Merit | Systems and Control Products II | |
| 871 | ROSSETTO, Tara | SA | Merit | Research Project B | |
| 872 | Rossetto, Tara | Loreto College | Marryatville | Gov of SA SACE Award | |
| 873 | RUDIGER, Harriette Josephine | SA | Merit | Modern History | |
| 874 | RUSSELL-JARVIE, Grace Hope | SA | Merit | Research Project B | |
| 875 | RUSSO, Eliza | SA | Merit | Child Studies | |
| 876 | RUSSO, Eliza | SA | Merit | English | |
| 877 | RUSSO, Patrick | SA | Merit | English | |
| 878 | RUSSO, Patrick | SA | Merit | Integrated Learning A | |
| 879 | RUTHERFORD, Tess Louise | SA | Merit | Research Project B | |
| 880 | RYAN, Amelia Lillian | SA | Merit | Research Project B | |
| 881 | RYBENSKI, Isabella | SA | Merit | Food and Hospitality | |
| 882 | SAFIEDDIN, Katia | SA | Merit | Research Project B | |
| 883 | SAJI EATTIMOOTTIL, Stalin | SA | Merit | Biology | |
| 884 | SAJI, Cyril | SA | Merit | English Literary Studies | |
| 885 | SAJI, Cyril | SA | Merit | Integrated Learning A | |
| 886 | SAJI, Cyril | SA | Merit | Psychology | |
| 887 | Saji, Cyril | Rostrevor College | Woodforde | Prize: Tennyson Medal | English Studies |
| 888 | SALERNO, Aidan | SA | Merit | Business and Enterprise | |
| 889 | SALERNO, Emma Grace | SA | Merit | Drama | |
| 890 | SALERNO, Emma Grace | SA | Merit | English | |
| 891 | SALERNO, Emma Grace | SA | Merit | General Mathematics | |
| 892 | SALERNO, Emma Grace | SA | Merit | Psychology | |
| 893 | SALTER, Isabel | SA | Merit | English Literary Studies | |
| 894 | SALTER, Isabel | SA | Merit | Psychology | |
| 895 | SANDERSON-BROMLEY, Iteka Ukarla | SA | Merit | Aboriginal Studies | |
| 896 | SAREEN, Aryan | SA | Merit | Research Project B | |
| 897 | SAROAR, Rifat Bin | SA | Merit | Mathematical Methods | |
| 898 | SARUNIC, Tristan | SA | Merit | Material Products I | |
| 899 | SAS, Mikaela Morgan | SA | Merit | Research Project B | |
| 900 | SAUERWALD, Corey | SA | Merit | Workplace Practices | |
| 901 | SAVAGE, Brianna | SA | Merit | Research Project B | |
| 902 | SAVVOUDIS, George | SA | Merit | Chemistry | |
| 903 | SAVVOUDIS, George | SA | Merit | Mathematical Methods | |
| 904 | SCHAR, Thomas | SA | Merit | Chemistry | |