This report lists the winners of Certificates of Distinction and Certificates of Merit for 2018, 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.
| 2101 | Cert of Merit | GILL-BEVIN, KLEO SINEAD | Eastern Goldfields College | Kalgoorlie |
| 2102 | Cert of Merit | GILLARD, THOMAS | Ursula Frayne Catholic College | Victoria Park |
| 2103 | Cert of Merit | GILLIBRAND, JESSICA | Swan Valley Anglican Community School | Aveley |
| 2104 | Cert of Merit | GILSON, TESSA | Carine Senior High School | Carine |
| 2105 | Cert of Merit | GIRAUDO, ZENDRA | John Curtin College of the Arts | Fremantle |
| 2106 | Cert of Merit | GISSING, LAUREN | Carmel Adventist College | Carmel |
| 2107 | Cert of Merit | GIUBILATO, MATTEO | Aquinas College | Salter Point |
| 2108 | Cert of Merit | GLASSBY, BROOKE RENAE | Helena College | Glen Forrest |
| 2109 | Cert of Merit | GLASSON, BRIANNA | St Stephens School Duncraig | Duncraig |
| 2110 | Cert of Merit | GODE, TARCIA | Churchlands Senior High School | Churchlands |
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| 2111 | Cert of Merit | GODFREY, BRIDGET | Penrhos College | Como |
| 2112 | Cert of Merit | GODFREY, MATTHEW | Mazenod College | Lesmurdie |
| 2113 | Cert of Merit | GODIN, TARA | Kennedy Baptist College | Murdoch |
| 2114 | Cert of Merit | GODSALL, JARED ROBERT | Pinjarra Senior High School | Pinjarra |
| 2115 | Cert of Merit | GOH, CLAUDIA JIAQI | Willetton Senior High School | Willetton |
| 2116 | Cert of Merit | GOKIDI, NITEESH | John Paul College | Kalgoorlie |
| 2117 | Cert of Merit | GOLDING, PAIGE | Carey Baptist College | Harrisdale |
| 2118 | Cert of Merit | GOLLAN, CAOIMHE | Sacred Heart College | Sorrento |
| 2119 | Cert of Merit | GOODING, AMELIA JEAN | Perth Modern School | Subiaco |
| 2120 | Cert of Merit | GOPFERT ESPINOSA, IAN | John XXIII College | Mount Claremont |
| 2121 | Cert of Merit | GORDON, ASHBY | Methodist Ladies College | Claremont |
| 2122 | Cert of Merit | GOREY, ANNABELLE | St Hildas Anglican School for Girls | Mosman Park |
| 2123 | Cert of Merit | GORMAN, REBECCA JEAN | Applecross Senior High School | Ardross |
| 2124 | Cert of Merit | GORS, JENEVA KATE | Northam Senior High School | Northam |
| 2125 | Cert of Merit | GOULD, ABBIE | John Paul College | Kalgoorlie |
| 2126 | Cert of Merit | GOULDEN-BUCKLEY, ELIZA | St Marys Anglican Girls School | Karrinyup |
| 2127 | Cert of Merit | GRACEY, OLIVER | Grace Christian School | Bunbury |
| 2128 | Cert of Merit | GRAHAM, CATE | Prendiville Catholic College | Ocean Reef |
| 2129 | Cert of Merit | GRANSDEN, KACEY ABIGAIL | Mindarie Senior College | Mindarie |
| 2130 | Cert of Merit | GRASETT, SAMUEL | Kingsway Christian College | Darch |
| 2131 | Cert of Merit | GRAY, AMY | Santa Maria College | Attadale |
| 2132 | Cert of Merit | GRAY, COOPER LINCOLN | Pinjarra Senior High School | Pinjarra |
| 2133 | Cert of Merit | GRAY, JUSTIN | Carey Baptist College | Harrisdale |
| 2134 | Cert of Merit | GRAY, LIAM | Frederick Irwin Anglican School | Mandurah |
| 2135 | Cert of Merit | GRAY, NAOMI SUZANNE | Kalamunda Senior High School | Kalamunda |
| 2136 | Cert of Merit | GRAYDON, MORGAN | Santa Maria College | Attadale |
| 2137 | Cert of Merit | GREEN, CHENOA | La Salle College | Middle Swan |
| 2138 | Cert of Merit | GREEN, DYLAN | Ursula Frayne Catholic College | Victoria Park |
| 2139 | Cert of Merit | GREEN, JOSIE LEE | John Curtin College of the Arts | Fremantle |
| 2140 | Cert of Merit | GREENAWAY, ASHLEIGH KATE | Como Secondary College | Como |
| 2141 | Cert of Merit | GREENE, JACKSON ANTHONY | Dalyellup College | Dalyellup |
| 2142 | Cert of Merit | GREENE, JODIE | Seton Catholic College | Samson |
| 2143 | Cert of Merit | GREEVE, BIANCA | St Hildas Anglican School for Girls | Mosman Park |
| 2144 | Cert of Merit | GREGORIO, KIARA ISABEL | Wanneroo Secondary College | Wanneroo |
| 2145 | Cert of Merit | GREVILLE, ELLA JADE | Applecross Senior High School | Ardross |
| 2146 | Cert of Merit | GRICE, THOMAS PETER | Geraldton Senior High School | Geraldton |
| 2147 | Cert of Merit | GRICKAGE, BIANCA | St Marys Anglican Girls School | Karrinyup |
| 2148 | Cert of Merit | GROBLER, CHANE | Methodist Ladies College | Claremont |
| 2149 | Cert of Merit | GROLMAN, AARON | Carmel School | Dianella |
| 2150 | Cert of Merit | GROSSE, MASON DOUGLAS | Applecross Senior High School | Ardross |