This is the SACE Honour Roll, listing every award, merit or prize won by South Australian SACE students in 2020, along with their school and subject details.
The report also includes significant Australian national awards and prizes such as the Australian Student Prize.
| 900 | Penn, Deacon | SA | Merit | English | |
| 901 | Pepe, Isaac | SA | Merit | Scientific Studies | |
| 902 | Perera, Dinan Sendiv | SA | Merit | Music Performance - Solo | |
| 903 | Perry, Laura | SA | Merit | General Mathematics | |
| 904 | Petrucco, Sabrina Grace | SA | Merit | Information Processing and Publishing | |
| 905 | Pham, Anthony | SA | Merit | Research Project B | |
| 906 | Phan, Sian | SA | Merit | Integrated Learning A | |
| 907 | Phan, Thi Hong Minh (Amber) | SA | Merit | English as an Additional Language | |
| 908 | Phan, Trung Vuong Hoai | SA | Merit | Chemistry | |
| 909 | Phang, Yi Hui | SA | Merit | Research Project B | |
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| 910 | Phillips, Olivia | SA | Merit | Research Project B | |
| 911 | Piggott, Rose | SA | Merit | English | |
| 912 | Piggott, Rose | SA | Merit | Research Project B | |
| 913 | Piscioneri, Amy | SA | Merit | Research Project B | |
| 914 | Pluckhahn, Kass | SA | Merit | English | |
| 915 | Pole, Alexandra Maelyn | SA | Merit | Research Project B | |
| 916 | Polley, Meg Peake | SA | Merit | Biology | |
| 917 | Pollnitz, Hannah Julie | SA | Merit | General Mathematics | |
| 918 | Ponniah, Joshua Thomas | SA | Merit | Music Performance - Solo | |
| 919 | Ponte, Ryan | SA | Merit | Essential English | |
| 920 | Portelli, Taylor | Eynesbury Senior College | Adelaide | Gov of SA SACE Award | |
| 921 | Porteous, Katherine Anne | SA | Merit | English Literary Studies | |
| 922 | Porter, Mia | SA | Merit | Psychology | |
| 923 | Potter, Georgia Ella | SA | Merit | Biology | |
| 924 | Potter, Georgia Ella | SA | Merit | Research Project B | |
| 925 | Potter, Sam Miles | SA | Merit | Physics | |
| 926 | Powell, Teagan Emma | SA | Merit | Physical Education | |
| 927 | Pratt, Allivia | SA | Merit | Psychology | |
| 928 | Pratt, Allivia | SA | Merit | Religion Studies | |
| 929 | Price, Catherine | SA | Merit | Interdisciplinary Learning and the Community | |
| 930 | Price, Phoebe Clare | SA | Merit | Research Project B | |
| 931 | Priestley, Sean Matthew | SA | Merit | Mathematical Methods | |
| 932 | Priestley, Sean Matthew | SA | Merit | Physics | |
| 933 | Principe, Julia | SA | Merit | Research Project B | |
| 934 | Prior, James Lyle | SA | Merit | Mathematical Methods | |
| 935 | Psevdos, Christo | SA | Merit | Research Project B | |
| 936 | Pudney, Amelia | SA | Merit | Research Project B | |
| 937 | Puust, Jemima | SA | Merit | Tourism | |
| 938 | Quadras, Sheya Cleona | SA | Merit | Biology | |
| 939 | Quadras, Sheya Cleona | SA | Merit | Research Project B | |
| 940 | Queale, Francesca Elizabeth | SA | Merit | General Mathematics | |
| 941 | Quick, Aaron | SA | Merit | English Literary Studies | |
| 942 | Quick, Aaron | SA | Merit | Research Project B | |
| 943 | Rahmanian, Arman | SA | Merit | Mathematical Methods | |
| 944 | Rajendra Kumar, Rahul | SA | Merit | Research Project A | |
| 945 | Ralph, Samuel | SA | Merit | Robotic and Electronic Systems | |
| 946 | Ramirez Torres, Armando Daniel | SA | Merit | Research Project B | |
| 947 | Rathjen, Kate Isabel | SA | Merit | Visual Arts - Art | |
| 948 | Raval, Disha Pankaj | SA | Merit | Research Project B | |
| 949 | Raval, Jayom | SA | Merit | English | |