This report lists the Subject/Course Exhibition and Award winners for each subject in 2020, along with the school that they attended.
Subject Exhibitions are awarded by the School Curriculum and Standards Authority to the student who obtains the highest raw exam score in an individual WACE course or subject.
Special Subject Awards may be awarded to a student who is ineligible for a Subject Exhibition but who has otherwise satisfied all other requirements for the award.
| 1 | Accounting and Finance | Subject Exhibition | Collins, Siobhan | St Hildas Anglican School for Girls | Mosman Park |
| 2 | Ancient History | Subject Exhibition | Bromley, Jes | Christ Church Grammar School | Claremont |
| 3 | Applied Information Technology | Subject Exhibition | Abdullahi, Abdi-Wadud Awil | Australian Islamic College Kewdale | Kewdale |
| 4 | Biology | Subject Exhibition | Grewal, Nimmat | St Marys Anglican Girls School | Karrinyup |
| 5 | Business Management and Enterprise | Subject Exhibition | Engelhard, Olivia | St Marys Anglican Girls School | Karrinyup |
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| 6 | Career and Enterprise | Subject Exhibition | Scafetta, Sofia | Santa Maria College | Melville |
| 7 | Chemistry | Subject Exhibition | Lu, Jason | Christ Church Grammar School | Claremont |
| 8 | Children, Family and the Community | Subject Exhibition | Watson, Amy | Chisholm Catholic College | Inglewood |
| 9 | Computer Science | Subject Exhibition | Price, Maxwell | Belridge Secondary College | Beldon |
| 10 | Dance | Subject Exhibition | Howatson, Siahn | Perth College | Mount Lawley |
| 11 | Design | Subject Exhibition | Keating, Renee | Applecross Senior High School | Ardross |
| 12 | Drama | Subject Exhibition | Mathieson, Blake | Perth Modern School | Subiaco |
| 13 | Earth and Environmental Science | Subject Exhibition | Hirani, Vinay | Ashdale Secondary College | Darch |
| 14 | Economics | Subject Exhibition | Wimalarathne, Nethma | Perth Modern School | Subiaco |
| 15 | Engineering Studies | Subject Exhibition | Ivanov, Manol | Perth Modern School | Subiaco |
| 16 | English | Subject Exhibition | Choo, Swen Tzen | Perth Modern School | Subiaco |
| 17 | English as an Additional Language or Dialect | Subject Exhibition | Pang, Tin Chi | Greenwood College | Greenwood |
| 18 | English as an Additional Language or Dialect | Special Subject Award | Ng, Kah Lok | Sunway College | Malaysia |
| 19 | Food Science and Technology | Subject Exhibition | Murray, Eliza | Presbyterian Ladies College | Peppermint Grove |
| 20 | French: Second Language | Subject Exhibition | Killoh, Jack | Willetton Senior High School | Willetton |
| 21 | Geography | Subject Exhibition | Bishop, Chloe | Butler College | Butler |
| 22 | Health Studies | Subject Exhibition | Tan, Esther | Melville Senior High School | Melville |
| 23 | Human Biology | Subject Exhibition | Van der Zanden, Stella | Presbyterian Ladies College | Peppermint Grove |
| 24 | Italian: Second Language | Subject Exhibition | MEDIC, Helena | Prendiville Catholic College | Joondalup |
| 25 | Japanese: Second Language | Subject Exhibition | Ng, Tatiana | Perth Modern School | Subiaco |