This report lists the winners of Certificates of Distinction and Certificates of Merit for 2020, 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.
| 3201 | Cert of Merit | Tan, Zi Peh | Shenton College | Shenton Park |
| 3202 | Cert of Merit | Tang, Jingjia | Providence Christian College | Southern River |
| 3203 | Cert of Merit | Tang, Kelley | Willetton Senior High School | Willetton |
| 3204 | Cert of Merit | Tang, Matthew | Rossmoyne Senior High School | Rossmoyne |
| 3205 | Cert of Merit | Taranto, Anthony | Aquinas College | Salter Point |
| 3206 | Cert of Merit | Tas, Darby | Cape Naturaliste College | Vasse |
| 3207 | Cert of Merit | Tasovac, Thomas | Comet Bay College | Secret Harbour |
| 3208 | Cert of Merit | Tassone, Michael | Trinity College | East Perth |
| 3209 | Cert of Merit | Tatham, Sarah | Australind Senior High School | Australind |
| 3210 | Cert of Merit | Tausem, Rachel | Greenwood College | Greenwood |
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| 3211 | Cert of Merit | Tay, Casey | School of Isolated and Distance Education | Leederville |
| 3212 | Cert of Merit | Taylor, Abbey | Comet Bay College | Secret Harbour |
| 3213 | Cert of Merit | Taylor, Joshua | John XXIII College | Mount Claremont |
| 3214 | Cert of Merit | Taylor, Lynelle | Providence Christian College | Southern River |
| 3215 | Cert of Merit | Teasdale, Jenna | Shenton College | Shenton Park |
| 3216 | Cert of Merit | Teh, Alyzza | Shenton College | Shenton Park |
| 3217 | Cert of Merit | Teh, Jayden | Mount Lawley Senior High School | Mount Lawley |
| 3218 | Cert of Merit | Teh, Mya | St Hildas Anglican School for Girls | Mosman Park |
| 3219 | Cert of Merit | Tempest, David | Joseph Banks Secondary College | Banksia Grove |
| 3220 | Cert of Merit | Templeman, Miranda | All Saints College | Bull Creek |
| 3221 | Cert of Merit | Terblanche, Anna | Methodist Ladies College | Claremont |
| 3222 | Cert of Merit | Tero, Ebony | John Curtin College of the Arts | Fremantle |
| 3223 | Cert of Merit | Tester, Niamh | Lesmurdie Senior High School | Lesmurdie |
| 3224 | Cert of Merit | Thackray, Alexandra | Iona Presentation College | Mosman Park |
| 3225 | Cert of Merit | Thackray, Ciara | Lesmurdie Senior High School | Lesmurdie |
| 3226 | Cert of Merit | Thannoo, Megan | Woodvale Secondary College | Woodvale |
| 3227 | Cert of Merit | Thayer, Abigail | Mandurah Catholic College | Mandurah |
| 3228 | Cert of Merit | Theaart, Chenelle | Kelmscott Senior High School | Kelmscott |
| 3229 | Cert of Merit | Theart, Robyn | Quinns Baptist College | Mindarie |
| 3230 | Cert of Merit | Thomas, Bryce | WA College of Agriculture Morawa | Morawa |
| 3231 | Cert of Merit | Thomas, Elijah | St Stephens School Carramar | Tapping |
| 3232 | Cert of Merit | Thomas, Ellie | Cape Naturaliste College | Vasse |
| 3233 | Cert of Merit | Thomas, Paige | Mandurah Catholic College | Mandurah |
| 3234 | Cert of Merit | Thompson, Astrid | Chisholm Catholic College | Bedford |
| 3235 | Cert of Merit | Thompson, Eliza | John XXIII College | Mount Claremont |
| 3236 | Cert of Merit | Thompson, Maya | Morley Senior High School | Noranda |
| 3237 | Cert of Merit | Thomson, Callum | Mount Lawley Senior High School | Mount Lawley |
| 3238 | Cert of Merit | Thong, Yoon Jun | Woodvale Secondary College | Woodvale |
| 3239 | Cert of Merit | Thornett, Ciara | Corpus Christi College | Bateman |
| 3240 | Cert of Merit | Thornton, Ashlee | Churchlands Senior High School | Churchlands |
| 3241 | Cert of Merit | Tiamzon, Yzabella | Emmanuel Catholic College | Success |
| 3242 | Cert of Merit | Tilbrook, Conor | Our Lady of Mercy College | Australind |
| 3243 | Cert of Merit | Tindall, Ebony | Lesmurdie Senior High School | Lesmurdie |
| 3244 | Cert of Merit | Tindall, Lara | Mandurah Baptist College | Lakelands |
| 3245 | Cert of Merit | Tinley, Charlotte | Narrogin Senior High School | Narrogin |
| 3246 | Cert of Merit | Tirta, Claudia | Willetton Senior High School | Willetton |
| 3247 | Cert of Merit | Tjokro Handojo, Tiffany | Applecross Senior High School | Ardross |
| 3248 | Cert of Merit | Todd, Hudson | Perth Modern School | Subiaco |
| 3249 | Cert of Merit | Todd, Jo | Mindarie Senior College | Mindarie |
| 3250 | Cert of Merit | Toh, Tania | Willetton Senior High School | Willetton |