This report lists the winners of Certificates of Distinction and Certificates of Merit for 2009, along with the school that they attended.
These certificates are awarded to students who achieve at least 150 points (Certificate of Merit) or 190 points (Certificate of Distinction) across 20 year 11 and year 12 course units or equivalents, of which 10 are at year 12 level.
Formerly these awards were named Certificates of Commendation (2012-2015) or Certificates of Excellence (prior to 2012), and were based on achievements of at least 20 'A' grades in course units or equivalents.
| 1 | Cert of Excellence | AITKEN, JORDAN MICHAEL | Hale School | Wembley Downs |
| 2 | Cert of Excellence | ALDERMAN, EMMA LAUREN | St Marys Anglican Girls School | Karrinyup |
| 3 | Cert of Excellence | ALDERSON, JENNIFER KATE | Presbyterian Ladies College | Peppermint Grove |
| 4 | Cert of Excellence | ALIKHANI (FARRELL), RAMIN | Carine Senior High School | Carine |
| 5 | Cert of Excellence | ALLAN, REBECCA STACY | Woodvale Secondary College | Woodvale |
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| 6 | Cert of Excellence | ALLAN, SPENCER MARGARET | Melville Senior High School | Melville |
| 7 | Cert of Excellence | ALLEN, TAHLIA TAMMY | Pinjarra Senior High School | Pinjarra |
| 8 | Cert of Excellence | AMATI, KARL BOOTH | Shenton College | Shenton Park |
| 9 | Cert of Excellence | ANANDAPPA, ANNABELLE JACINTA | Santa Maria College | Melville |
| 10 | Cert of Excellence | ANDERLE, UMBERTO | Bunbury Cathedral Grammar School | Bunbury |
| 11 | Cert of Excellence | ANDERSON, HAYLEY LOUISE | Churchlands Senior High School | Churchlands |
| 12 | Cert of Excellence | ANDREOTTA, MATTHEW | Peter Moyes Anglican Community School | Quinns Rocks |
| 13 | Cert of Excellence | ANDREWS, HANNAH-MEI ELIZABETH | Santa Maria College | Melville |
| 14 | Cert of Excellence | ANG, LING YEW | Willetton Senior High School | Willetton |
| 15 | Cert of Excellence | ANG, TIMOTHY | Rossmoyne Senior High School | Rossmoyne |
| 16 | Cert of Excellence | ANICIC, SARA | Ballajura Community College | Ballajura |
| 17 | Cert of Excellence | ARCIDIACONO, KAILA BROOKE | Woodvale Secondary College | Woodvale |
| 18 | Cert of Excellence | ARCUS, CAITLIN JANE | Perth College | Mt Lawley |
| 19 | Cert of Excellence | ARENA, STEVEN DANIEL | Frederick Irwin Anglican School | Mandurah |
| 20 | Cert of Excellence | ARMOUR, TENIELLE JASMIN | Hampton Senior High School | Morley |
| 21 | Cert of Excellence | ATHERTON, DANIEL STEPHEN | Sacred Heart College | Wangara |
| 22 | Cert of Excellence | ATHERTON, TARIS ANNE | Pinjarra Senior High School | Pinjarra |
| 23 | Cert of Excellence | BAELI, JOEL DANIEL | Woodvale Secondary College | Woodvale |
| 24 | Cert of Excellence | BAIRD, ASHLEE KATE | Penrhos College | Como |
| 25 | Cert of Excellence | BARBER, CLAIRE MARIE | Perth College | Mt Lawley |