All staff can be contacted via email by using their cypher followed by @aranui-high.school.nz
| Name | Cypher | Area of Teaching etc |
| Aitken, Alex | An | PE |
| Auimatagi, Andrew | Au | Rugby League Academy/PE |
| Batcheler, Sia | Ba | ESOL |
| Bishop, Steve | Bp | Services Academy Director |
| Bladen, Debbie | Bn | PE, Yr 11 Dean |
| Blomfield, Melanie | Bd | Science (part time) |
| Boothby, Helen | By | Science, Biology, Specialist Classroom Teacher |
| Breukelaar, Wil | Br | Textiles, Home Ec |
| Briggs, Lauren | Bg | Head of ESOL/Internationals |
| Campagnolo, Kit | Co | Maths, Graphics |
| Cook, David | Ck | HOD Design Tech/Trades |
| Cullen, Murray | Cn | Computing, CISCO |
| Daines, Murray | Ds | Maths, Physics |
| Dearsley, Paul | Dy | Assistant HOD English |
| Dudding, Richie | Dg | Science, Biology |
| Flanagan, Margaret | Fn | Guidance Counsellor |
| Free, Jennifer | Fj | Japanese, Social Sciences (part time) |
| Frew, Fiona | Fr | Asst HOD Social Science |
| Furness, Maree | Fs | Assistant Principal |
| Gilbert, Rob | Gb | HOD Drama, Year 12/13 Dean |
| Hawker, Liz | Hr | Assistant Principal |
| Henderson, Chris | Hc | Social Sciences, Geography |
| Herman, Jane | Hn | HOD Music |
| Hlavac, Margaux | Hl | English |
| Hoffman, Paul | Hf | Asst HOD PE, Yr 10 Dean |
| Hoffman, Tania | Ht | Sports Development Academy |
| James, Lindsey | Js | TIC Careers, Employment Skills, Child Care, |
| Keating, Lisa | Kg | Outdoor Adventure Academy, Maths |
| Kjelgaard, Chris | Kj | ESOL |
| Knops, Bert | Kp | HOD PE, Sports Director, Basketball Ac |
| Knops, Dianne | Kd | HOD Whole School Learning Support |
| Kyle, Scott | Ke | PE, Acting TIC Health |
| Lamb, Jenny | Lb | Learning Support Centre |
| Leota, Taufao | La | Samoan; Samoan family liaison |
| Mahuika, Irihapeti | Ma | Te Reo |
| McGowan, Kay | Mk | ESOL |
| McLean, Laura | Mn | English |
| Millar, Dave | Mr | Drama |
| Murphy, Shaun | Ms | TIC Art, Photography |
| Murphy, Siobhan | Mu | HOD Social Science |
| Nijdam, Francine | Nd | Assistant HOD Maths |
| Osborne, Paul | Oe | HOD Maths |
| Painter, Amelia | Pr | Computers, Yr 9 Dean |
| Paki, Dave | Pi | Carving Tutor |
| Payne, Steve |
| Services Academy |
| Phillips, Tanya | Ph | HOD English |
| Poi, Hori | Po | Maori Liaison – Pastoral Care |
| Porteous, Gary | Pg | HOD Home Ec, Academies Dean |
| Price, Bridget | Pb | Commerce, Maths |
| Puanaki, Tihi | Pk | HOD Maori |
| Roberts, Kevin | Rs | Music, Design Tech |
| Robertson, Carole | Rn | Home Ec |
| Rohs, John | Jr | Principal |
| Stock, Matt | Sk | HOD Science, Chemistry |
| Withell, Brenda | Wl | Childcare Academy |
| Young, Jacky | Yg | Deputy Principal, Science |
| Zack, Denise | Zk | English, Maths |