Senior Leadership Team
- Principal, Sheena Millar, sheena.millar@onslow.school.nz (on Sabbatical for Term 1, 2025)
- Co-Acting Principal, Connor Baird, connor.baird@onslow.school.nz
- Co-Acting Principal, Jonathan Wyeth, jonathan.wyeth@onslow.school.nz
- Deputy Principal, Julia Woods, julia.woods@onslow.school.nz
- Deputy Principal, Michael Bangma, michael.bangma@onslow.school.nz
- Deputy Principal (Acting), Leanne Jenkins, leanne.jenkins@onslow.school.nz
- Property Manager & Executive Assistant, Katrina Brell, principalpa@onslow.school.nz
- Business Manager, Craig McWilliam, craig.mcwilliam@onslow.school.nz
Deans for 2025
- Year 9 Dean(s) Ana Welham & Nick Iles - dean.classof29@onslow.school.nz
- Year 10 Dean(s) Olivia Copeman & Stu Pyne - dean.classof28@onslow.school.nz
- Year 11 Dean(s) Alyx Devlin & Rosanna Williams - dean.classof27@onslow.school.nz
- Year 12 Dean(s) Naykita Shelford-Hinds & Mark Redgrave - dean.classof26@onslow.school.nz
- Year 13 Dean (s) Hamish Rodger & Tatiana Voropaeva - dean.classof25@onslow.school.nz
Learning Area Leaders
- Arts, Kathy Roy, kathy.roy@onslow.school.nz
- Careers, Peter Chapman, peter.chapman@onslow.school.nz
- English, Bronwyn Polaschek, bronwyn.polaschek@onslow.school.nz
- International Director, Robynne Bloemstein, robynne.bloemstein@onslow.school.nz
- Languages, Glenn Wilson, glenn.wilson@onslow.school.nz
- Learning Support, Kirsty Holden, kirsty.holden@onslow.school.nz
- Māori, Jason Va’a, jason.va'a@onslow.school.nz & Tāpine Simmons tapine.simmons@onslow.school.nz
- Math, Shimmy Unnikrishnan, shimmy.unnikrishnan@onslow.school.nz
- Physical Education, Ben Rogers, ben.rogers@onslow.school.nz
- Science, Kuda Paradza, kuda.paradza@onslow.school.nz
- Social Science, Mike Taylor, mike.taylor@onslow.school.nz
- Technology, Tim Dagger, tim.dagger@onslow.school.nz
Guidance
- Head Guidance Counselor, Rebecca Cottis, rebecca.cottis@onslow.school.nz
* You can email staff by using the address firstname.surname@onslow.school.nz