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.
| 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 | |
| 753 | Oates, Gregory | SA | Merit | Chemistry | |
| 754 | Oates, Gregory | SA | Merit | Mathematical Studies | |
| 755 | Oates, Gregory | SA | Merit | Physics | |
| 756 | Oates, Gregory Peter | Xavier College Gawler Belt Campus | Gawler Belt | Australian Student Prize | |
| 757 | Obaydin, Ivan | SA | Merit | Systems and Control Products B | |
| 758 | Ogi, Harumi | SA | Merit | Japanese (Continuers) | |
| 759 | Ogilvie, Alexandra Jane | SA | Merit | English Communications | |
| 760 | Ohlendorf, Sean Graham Campbell | SA | Merit | German (Continuers) | |
| 761 | Ohlendorf, Sean Graham Campbell | SA | Prize: Goethe Prize | German | |
| 762 | Oliver, Todd James | SA | Merit | English Communications | |
| 763 | Ong, Mei Jin | SA | Merit | English as Second Language Studies | |
| 764 | Osborne, Prema Jean | SA | Merit | Music Individual Study | |
| 765 | Ouslinis, Zachary John | SA | Merit | Communication Products A | |
| 766 | Padhye, Vaishali | SA | Merit | Biology | |
| 767 | Padhye, Vaishali | SA | Merit | English Studies | |
| 768 | Padmanabhan, Reena | SA | Merit | English Studies | |
| 769 | Padmanabhan, Reena | SA | Merit | Modern History | |
| 770 | Paley, Madeleine Kate | SA | Merit | Contemporary Issues and Science | |
| 771 | Palm, Carly Erin | SA | Merit | Business Documents | |
| 772 | Panagis, Fiona | SA | Merit | Italian (Continuers) | |
| 773 | Papps, Despina | SA | Merit | Mathematical Studies | |
| 774 | Parasiers, Jasmin Sonya | SA | Merit | Classical Studies | |
| 775 | Parasiers, Jasmin Sonya | SA | Merit | Mathematical Applications | |
| 776 | Parasiers, Jasmin Sonya | SA | Prize: Classical Association of SA Prize | Classical Studies | |
| 777 | Parkin, Julia Lenore Bamford | SA | Merit | English Studies | |
| 778 | Parsons, Alysha Erin | SA | Merit | Physical Education | |
| 779 | Partington, Andrew | SA | Merit | Solo Performance | |
| 780 | Parton, William | SA | Merit | Performance Special Study | |
| 781 | Parton, William | SA | Merit | Solo Performance | |
| 782 | Pascal-Murray, Jennifer Leanne | SA | Merit | Mathematical Applications | |
| 783 | Paschke, Sophia Patrice | SA | Merit | Biology | |
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| 784 | Paschke, Sophia Patrice | SA | Merit | Economics | |
| 785 | Paschke, Sophia Patrice | SA | Merit | Legal Studies | |
| 786 | Paschke, Sophia Patrice | SA | Prize: Economics Teachers Society of SA Prize | Economics | |
| 787 | Paschke, Sophia Patrice | Sacred Heart College | Somerton Park | Australian Student Prize | |
| 788 | Paterson, Jenna Anne | SA | Merit | Mathematical Studies | |
| 789 | Paterson, Jenna Anne | SA | Merit | Specialist Mathematics | |
| 790 | Paton, Charlotte Edwina Cadzow | SA | Merit | Classical Studies | |
| 791 | Pearce, Amanda | SA | Merit | Psychology | |
| 792 | Pearce, Sarah | SA | Merit | Mathematical Studies | |
| 793 | Pederick, Lenard | SA | Merit | Mathematical Studies | |
| 794 | Pederick, Lenard | SA | Merit | Specialist Mathematics | |
| 795 | Penner, Alexandra Jane | SA | Merit | Food and Hospitality Studies | |
| 796 | Perdikis, Steven Petro | SA | Merit | Information Technology B | |
| 797 | Pergallini, Brent Anthony | SA | Merit | Information Technology Studies | |
| 798 | Perkins, Angela | SA | Merit | Physical Education | |
| 799 | Peshanoff, Lindsey Sheridan | SA | Merit | Legal Studies | |
| 800 | Peterer, Michael Franz | SA | Merit | Solo Performance | |
| 801 | Petiet, Adrian Keith | SA | Merit | Art Practical | |
| 802 | Petridis, Andy | SA | Merit | English Studies | |
| 803 | Petrusma, Jessica | SA | Merit | Tourism | |
| 804 | Pfeiffer, Nikki Kim | SA | Merit | Geography | |
| 805 | Pfitzner, Amy Diana Louise | SA | Merit | Early Childhood Studies | |
| 806 | Pfitzner, Wesley | SA | Merit | Music Individual Study | |
| 807 | Pham, Hanh my Huu | SA | Merit | Vietnamese (Background Speakers) | |
| 808 | Phillips, Alexandra Lidwina | SA | Merit | Chemistry | |
| 809 | Phillips, Melissa Siobhan | SA | Merit | Italian (Continuers) | |
| 810 | Phillips, Trent | SA | Merit | Mathematical Applications | |
| 811 | Pietsch, Nicholas James | SA | Merit | Mathematical Studies | |
| 812 | Pietsch, Nicholas James | SA | Merit | Musicianship | |
| 813 | Pietsch, Nicholas James | SA | Merit | Physics | |
| 814 | Pietsch, Nicholas James | SA | Merit | Specialist Mathematics | |
| 815 | Pietsch, Nicholas James | Concordia College | Highgate | Australian Student Prize | |
| 816 | Pilch, Konrad Karol | St Peters College | St Peters | Australian Student Prize | |
| 817 | Pilla, Mara | SA | Merit | Indonesian (Continuers) | |
| 818 | Pillen, Rhiannon Skye | SA | Merit | Mathematical Studies | |
| 819 | Pisaniello, Jonathon Max | SA | Merit | Biology | |
| 820 | Pisaniello, Jonathon Max | SA | Merit | Italian (Continuers) | |
| 821 | Pishas, Kathleen Irene | SA | Merit | English Studies | |
| 822 | Platis, Ayesha Christina | SA | Merit | English Communications | |
| 823 | Platis, Ayesha Christina | SA | Merit | Mathematical Applications | |
| 824 | Plotka, Wioletta Katarzyna | SA | Merit | Vocational Studies A | |
| 825 | Plummer, Christopher Alexander | SA | Merit | English Communications | |
| 826 | Pollock, Shaun Michael | SA | Merit | Extension Studies A | |
| 827 | Poole, Leonie Claire | SA | Merit | Business Documents | |
| 828 | Poole, Leonie Claire | SA | Merit | Desktop Publishing | |
| 829 | Porter, David Benjamin | SA | Merit | Mathematical Studies | |
| 830 | Prescott, Nicholas Henry Brian | SA | Merit | Communication Products A | |
| 831 | Price, Tiffany | SA | Merit | Physical Education | |
| 832 | Pridham, Nicole Jayne | SA | Merit | Music Individual Study | |
| 833 | Proctor, Aidan | SA | Merit | Environment and the Community | |
| 834 | Pugh, Meagan | SA | Merit | Physical Education | |
| 835 | Pugh, Meagan | SA | Merit | Vocational Studies A | |
| 836 | Putland, Bronwyn | SA | Merit | Arts and the Community | |
| 837 | Qiu, Jiayuan | SA | Merit | Chinese (Background Speakers) | |
| 838 | Quist, Annabelle Gemma | SA | Merit | Drama Studies | |
| 839 | Quist, Annabelle Gemma | SA | Merit | English Studies | |
| 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 | |
| 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 | |
| 890 | Sare, Diana | SA | Merit | Mathematical Applications | |
| 891 | Sarris, Dimitri | SA | Merit | Mathematical Methods | |
| 892 | Sarris, Dimitri | SA | Merit | Physical Education | |
| 893 | Sattler, Bettina | SA | Merit | Vocational Studies A | |
| 894 | Saunders, Christina | SA | Merit | Solo Performance | |
| 895 | Saunders, Rupert James | SA | Merit | Biology | |
| 896 | Schlicker, Maxwell Geoffrey | SA | Merit | Physical Education | |
| 897 | Schmaal, Sheree Anne | SA | Merit | English Studies | |
| 898 | Schoo, Nastashia Elena | SA | Merit | English Studies | |
| 899 | Schricker, Sarah Catherine | SA | Merit | German (Continuers) | |
| 900 | Schricker, Sarah Catherine | SA | Prize: Schiller Prize | German | |
| 901 | Schumann, Adelaide Denise | SA | Merit | Biology | |
| 902 | Schumann, Adelaide Denise | SA | Merit | Chemistry | |
| 903 | Schumann, Adelaide Denise | SA | Prize: Hardwicke College Prize | Biology | |
| 904 | Schuurmans, Krista | SA | Merit | Biology | |
| 905 | Scott, Lauren Margaret | SA | Merit | Physical Education | |
| 906 | Scrimgeour, Lara Jade | SA | Merit | Indonesian (Accelerated) | |
| 907 | Semczuk, Megan Ann | SA | Merit | Vocational Studies B | |
| 908 | Seta, Paul Daniel | SA | Merit | Geography Studies | |
| 909 | Shahnam, Hamed | SA | Merit | Biology | |
| 910 | Sharrad, Liam Charles | SA | Merit | Communication Products B | |
| 911 | Sharrad, Lydia | SA | Merit | Performance Special Study | |
| 912 | Sharrad, Lydia | SA | Merit | Solo Performance | |
| 913 | Shirley, Alana Jayne | SA | Merit | Nutrition | |
| 914 | Sibbin, Cassandra Janet Anne | SA | Merit | English Communications | |
| 915 | Simakov, Nikita | SA | Merit | Physics | |
| 916 | Simmonds, Colleen Maree | SA | Merit | English Communications | |
| 917 | Simmonds, Mary-Claire | SA | Merit | Mathematical Applications | |
| 918 | Simmonds, Mary-Claire | SA | Merit | Psychology | |
| 919 | Simmonds, Samantha | SA | Merit | Physical Education | |
| 920 | Simmonds, Samantha | SA | Merit | Vocational Studies B | |
| 921 | Simms, Michael David | SA | Merit | English Studies | |
| 922 | Simms, Michael David | SA | Merit | Solo Performance | |
| 923 | Sims, Belinda Kaye | SA | Merit | Business Studies | |
| 924 | Sims, Belinda Kaye | SA | Merit | Legal Studies | |
| 925 | Sinanis, George | SA | Merit | Modern Greek (Continuers) | |
| 926 | Singla, Apresh Arun | SA | Merit | Mathematical Studies | |
| 927 | Siren, Hannu Alex | SA | Merit | Solo Performance | |
| 928 | Skaczkowski, Gemma Louise Amelia | SA | Merit | Biology | |
| 929 | Skaczkowski, Gemma Louise Amelia | SA | Merit | English Studies | |
| 930 | Skeer, Nick B | SA | Merit | English Communications | |
| 931 | Skinner, Brendon Peter | SA | Merit | Extension Studies A | |
| 932 | Skourides, Andreas | SA | Merit | Modern Greek (Continuers) | |
| 933 | Slater, Derek Henry | SA | Merit | Arts and the Community | |
| 934 | Slattery, Cendall Taryn | SA | Merit | English Communications | |
| 935 | Slattery, Therese Maria | SA | Merit | English Communications | |
| 936 | Sletvold, Nicole Lee | SA | Merit | Psychology | |
| 937 | Smith, Jack | SA | Merit | Communication Products B | |
| 938 | Smith, Nicholas | St Peters College | St Peters | Australian Student Prize | |
| 939 | Smith, Nicholas William Sinclair | SA | Merit | Biology | |
| 940 | Smith, Nicholas William Sinclair | SA | Merit | Chemistry | |
| 941 | Smith, Nicholas William Sinclair | SA | Merit | English Communications | |
| 942 | Smith, Nicholas William Sinclair | SA | Merit | Mathematical Studies | |
| 943 | Smith, Nicholas William Sinclair | SA | Merit | Physics | |