This report lists the winners of Subject Certificate of Excellence awards (formerly Certificate of Distinction awards) in 2018, along with the school that they attended.
These awards are granted by the School Curriculum and Standards Authority to the top 0.5% of students in each tertiary entrance subject based on their examination marks.
Special Subject Certificates of Excellence may be awarded to a student who is ineligible for a Subject Certificate of Excellence but who has otherwise satisfied all other requirements for the award.
| 1 | Accounting and Finance | Special Subject Cert of Excellence | YANG, LIM ZHENG | Sunway College | Malaysia |
| 2 | Accounting and Finance | Special Subject Cert of Excellence | YONG, LIM | Sunway College | Malaysia |
| 3 | Accounting and Finance | Special Subject Cert of Excellence | YUN, NG QIAN | Sunway College | Malaysia |
| 4 | Accounting and Finance | Subject Cert of Excellence | CHOO, KEVIN CHANG WEN | Willetton Senior High School | Willetton |
| 5 | Accounting and Finance | Subject Cert of Excellence | INGLIS, ANNA | St Marys Anglican Girls School | Karrinyup |
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| 6 | Accounting and Finance | Subject Cert of Excellence | LIEW, SU JUN | Rossmoyne Senior High School | Rossmoyne |
| 7 | Accounting and Finance | Subject Cert of Excellence | YANG, LEAH | Rossmoyne Senior High School | Rossmoyne |
| 8 | Ancient History | Subject Cert of Excellence | CALLERY, ROISIN CROI | Perth Modern School | Subiaco |
| 9 | Ancient History | Subject Cert of Excellence | WILLIAMS, EMMA ASHLEIGH | Perth Modern School | Subiaco |
| 10 | Applied Information Technology | Subject Cert of Excellence | MORENO, LILIANA | Santa Maria College | Melville |
| 11 | Applied Information Technology | Subject Cert of Excellence | ROGERS, RHYS | Mandurah Baptist College | Mandurah North |
| 12 | Biology | Subject Cert of Excellence | CALLERY, ROISIN CROI | Perth Modern School | Subiaco |
| 13 | Biology | Subject Cert of Excellence | CONNOR, RUBY MARGUERITE | Esperance Senior High School | Esperance |
| 14 | Biology | Subject Cert of Excellence | HONG, XIN YI | Willetton Senior High School | Willetton |
| 15 | Biology | Subject Cert of Excellence | JOHNSON, EMMA CATHERINE | Willetton Senior High School | Willetton |
| 16 | Biology | Subject Cert of Excellence | JOSHI, SUNIL HARIRAM | Willetton Senior High School | Willetton |
| 17 | Biology | Subject Cert of Excellence | LEE, RUO YAN | Perth Modern School | Subiaco |
| 18 | Biology | Subject Cert of Excellence | MASTERS, RHIANNON ROSE | Willetton Senior High School | Willetton |
| 19 | Biology | Subject Cert of Excellence | PANG, VICTORIA | Irene Mccormack Catholic College | Quinns Rocks |
| 20 | Biology | Subject Cert of Excellence | RASHED, AARIYANA | Swan Valley Anglican Community School | Ellenbrook |
| 21 | Business Management and Enterprise | Special Subject Cert of Excellence | JIUN, TAY | Sunway College | Malaysia |
| 22 | Business Management and Enterprise | Special Subject Cert of Excellence | WEI, KOH JIA | Sunway College | Malaysia |
| 23 | Business Management and Enterprise | Special Subject Cert of Excellence | YI, SHERMANE LEONG JIA | Sunway College | Malaysia |
| 24 | Business Management and Enterprise | Subject Cert of Excellence | MATIC, MONIKA | Santa Maria College | Melville |
| 25 | Career and Enterprise | Subject Cert of Excellence | BOLTON, ALI ROSE | Rossmoyne Senior High School | Rossmoyne |