Kia Ora!

I'm Joan Costello, Te reo Māori teacher and Director of Te Reo Tūhono Limited.

For over 30 years, I have been teaching te reo Māori to individuals and organisations, to ignite their confidence, speaking ability and cultural understanding. This includes 13 years as the in-house Kaiako/Māori Language Teacher at Te Papa Tongarewa. (Click here to see a list of my clients below.)

I hold a Bachelor of Teaching and Learning Kura Kaupapa Māori from Massey University. I am also a qualified Te Ataarangi Kaiako (teacher).

What I offer


I am based in Wellington, but offer online courses across the motu.

My classes are bespoke and meet the needs of businesses, schools, communities and their people. Classes can be tailored for specific contexts.

I teach classes at all levels and have classes full of laughter and enjoyment.

I also coach and guide CEOs and other leaders to speak te reo Māori with authenticity and confidence.

My PAST AND PRESENT clients:

Asia New Zealand

Civil Aviation Authority of New Zealand/Aviation Security Service

Commerce Commission

Creative New Zealand

Crown Law

Department of Prime Minister and Cabinet

Experience Wellington

Housing New Zealand

Ministry of Business, Innovation and Employment

Ministry of Defence

Ministry of Health

Ministry of Justice

New Zealand Transport Agency

Office of the Auditor General

Office of the Children’s Commissioner

Office of the Ombudsman

Office of the Privacy Commissioner

Royal New Zealand Ballet

Serious Fraud Office

The Law Commission

The National Museum of New Zealand - Te Papa Tongarewa

The Treasury

Todd Foundation