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.
| 3101 | Cert of Merit | PHAM, XUAN-MAI | Mercedes College | Perth |
| 3102 | Cert of Merit | PHILIP PAUL, PETE JOSHVAN | Rossmoyne Senior High School | Rossmoyne |
| 3103 | Cert of Merit | PHILIPPIDIS, SOFIA MARIE | Shenton College | Shenton Park |
| 3104 | Cert of Merit | PHILLIPS, LILLIAN | Santa Maria College | Attadale |
| 3105 | Cert of Merit | PHUNG, THU HA ANNA | Chisholm Catholic College | Bedford |
| 3106 | Cert of Merit | PICKARD, CAILEY | Kennedy Baptist College | Murdoch |
| 3107 | Cert of Merit | PICKERING, EMMA | Churchlands Senior High School | Churchlands |
| 3108 | Cert of Merit | PICKERING, SOPHIE JADE | Greenwood College | Greenwood |
| 3109 | Cert of Merit | PIERCE, SAMUEL | Scotch College | Swanbourne |
| 3110 | Cert of Merit | PIETRZAK DA ROCHA, JORDAN | Aquinas College | Salter Point |
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| 3111 | Cert of Merit | PIKE, CALE | Aquinas College | Salter Point |
| 3112 | Cert of Merit | PILKINGTON, KAYLA | Frederick Irwin Anglican School | Mandurah |
| 3113 | Cert of Merit | PILLINGER, SARAH JANE | Thornlie Senior High School | Thornlie |
| 3114 | Cert of Merit | PINTO, ANDREA | Corpus Christi College | Bateman |
| 3115 | Cert of Merit | PINTO, KYLE | Chisholm Catholic College | Bedford |
| 3116 | Cert of Merit | PIOVESAN, TESSA | Prendiville Catholic College | Ocean Reef |
| 3117 | Cert of Merit | PIPER, SCOTT | Guildford Grammar School | Guildford |
| 3118 | Cert of Merit | PISANO, DAMIAN | Trinity College | East Perth |
| 3119 | Cert of Merit | PITSIKAS, LOUIS | Guildford Grammar School | Guildford |
| 3120 | Cert of Merit | PITTAWAY, PIERCE | La Salle College | Middle Swan |
| 3121 | Cert of Merit | PIUS, DON BOSCO | Aranmore Catholic College | Leederville |
| 3122 | Cert of Merit | PLAYFORD, HENRY | Christ Church Grammar School | Claremont |
| 3123 | Cert of Merit | PLEITER, AARON | John Calvin Christian College | Armadale |
| 3124 | Cert of Merit | PLEWRIGHT, JESSICA | Penrhos College | Como |
| 3125 | Cert of Merit | PLUMMER, HENRY | Carine Senior High School | Carine |
| 3126 | Cert of Merit | PLUMRIDGE, MYA VICTORIA | Willetton Senior High School | Willetton |
| 3127 | Cert of Merit | POLITI, ALICIA | Prendiville Catholic College | Ocean Reef |
| 3128 | Cert of Merit | POLLARD, KAYLA LOUISE | Como Secondary College | Como |
| 3129 | Cert of Merit | POLLASTRI, BETH | Methodist Ladies College | Claremont |
| 3130 | Cert of Merit | PONTON, DYLAN | Churchlands Senior High School | Churchlands |
| 3131 | Cert of Merit | POON, NATALIE SOOK HAN | Belmont City College | Belmont |
| 3132 | Cert of Merit | POONIA, JATIN | Trinity College | East Perth |
| 3133 | Cert of Merit | POOVATHANICKAL, ELIZABETH | Mercy College | Koondoola |
| 3134 | Cert of Merit | POPHAM, ADAM | St Stephens School Duncraig | Duncraig |
| 3135 | Cert of Merit | POPHAM, BEN | St Stephens School Duncraig | Duncraig |
| 3136 | Cert of Merit | PORCARO, HANNAH | Mercedes College | Perth |
| 3137 | Cert of Merit | PORTAS, TAYLA KAYE | Kununurra District High School | Kununurra |
| 3138 | Cert of Merit | POUR AHMADI, ROZHAN | Balcatta Senior High School | Balcatta |
| 3139 | Cert of Merit | POVEY, ZACHARY | Mazenod College | Lesmurdie |
| 3140 | Cert of Merit | POWELL, HAYLEY | Swan Valley Anglican Community School | Aveley |
| 3141 | Cert of Merit | POWELL, JAYD | Churchlands Senior High School | Churchlands |
| 3142 | Cert of Merit | POWERS, ANIKA | Newman College | Churchlands |
| 3143 | Cert of Merit | PRANGNELL, AIDAN BAILEY | Margaret River Senior High School | Margaret River |
| 3144 | Cert of Merit | PRANOTO, MATTHEW | Churchlands Senior High School | Churchlands |
| 3145 | Cert of Merit | PRASHANTH, KIRAN | Churchlands Senior High School | Churchlands |
| 3146 | Cert of Merit | PREE, MAX | St Marks Anglican Community School | Hillarys |
| 3147 | Cert of Merit | PRESTON, AMY LEE | Eastern Hills Senior High School | Mount Helena |
| 3148 | Cert of Merit | PRESTON, CLAIRE | Perth College | Mount Lawley |
| 3149 | Cert of Merit | PRESTON, JESSICA | Southern River College | Gosnells |
| 3150 | Cert of Merit | PRESTON, KATELYN | Iona Presentation College | Mosman Park |