This report lists the winners of Subject Certificate of Excellence awards (formerly Certificate of Distinction awards) in 2009, 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 | Subject Cert of Distinction | ATHERTON, DANIEL STEPHEN | Sacred Heart College | Wangara |
| 2 | Accounting | Subject Cert of Distinction | COLLINS, LORETTA EVA | Sacred Heart College | Wangara |
| 3 | Accounting | Subject Cert of Distinction | DAVIES, GEORGIA LOUISE | Penrhos College | Como |
| 4 | Accounting | Subject Cert of Distinction | DAVIS, BENJAMIN | Christ Church Grammar School | Claremont |
| 5 | Accounting | Subject Cert of Distinction | NATALEGAWA, MUHAMMAD ARDHIKA | Christ Church Grammar School | Claremont |
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| 6 | Accounting | Subject Cert of Distinction | TAN, LUVENA SUET LYN | Willetton Senior High School | Willetton |
| 7 | Ancient History | Subject Cert of Distinction | CRANDELL, JULIA MAE | Shenton College | Shenton Park |
| 8 | Ancient History | Subject Cert of Distinction | QIU, DAVID XINYING | Shenton College | Shenton Park |
| 9 | Animal Production and Marketing | Subject Cert of Distinction | REYNOLDS, ANDREW JOHN | WA College of Agriculture Cunderdin | Cunderdin |
| 10 | Animal Production and Marketing | Subject Cert of Distinction | SOULOS, KIRSTY LEE | WA College of Agriculture Cunderdin | Cunderdin |
| 11 | Applicable Mathematics | Special Subject Cert of Distinction | LU, YIFAN | Wesley College | South Perth |
| 12 | Applicable Mathematics | Special Subject Cert of Distinction | NOT FOR PUBLICATION | KBU International College | Petaling Jaya Malaysia |
| 13 | Applicable Mathematics | Subject Cert of Distinction | ANDERSON, HAYLEY LOUISE | Churchlands Senior High School | Churchlands |
| 14 | Applicable Mathematics | Subject Cert of Distinction | CARR, JUDITH ALEXANDRA | St Hildas Anglican School for Girls | Mosman Park |
| 15 | Applicable Mathematics | Subject Cert of Distinction | CROWTHER, THOMAS OWEN | Trinity College | East Perth |
| 16 | Applicable Mathematics | Subject Cert of Distinction | ELPHICK, LIAM CURTIS | Wesley College | South Perth |
| 17 | Applicable Mathematics | Subject Cert of Distinction | GUPTA, SAKSHAM | Rossmoyne Senior High School | Rossmoyne |
| 18 | Applicable Mathematics | Subject Cert of Distinction | KERR, DYLAN TAVIS | Mazenod College | Lesmurdie |
| 19 | Applicable Mathematics | Subject Cert of Distinction | KONG, JASON | Christ Church Grammar School | Claremont |
| 20 | Applicable Mathematics | Subject Cert of Distinction | LAI, XINYI | Rossmoyne Senior High School | Rossmoyne |
| 21 | Applicable Mathematics | Subject Cert of Distinction | LI, PETER | Rossmoyne Senior High School | Rossmoyne |
| 22 | Applicable Mathematics | Subject Cert of Distinction | LIM, WENDY YIN | John Septimus Roe Anglican Community School | Mirrabooka |
| 23 | Applicable Mathematics | Subject Cert of Distinction | LU, BO AN | Christ Church Grammar School | Claremont |
| 24 | Applicable Mathematics | Subject Cert of Distinction | LUO, KI-YUNG | Lake Joondalup Baptist College | Joondalup |
| 25 | Applicable Mathematics | Subject Cert of Distinction | OGNENIS, SAMUEL CHRISTOPHER | Mount Lawley Senior High School | Mount Lawley |