Raymond Henry "Sandy" Adsett MNZM (born 27 August 1939) is a New Zealand visual artist and educator. He is acknowledged for championing the art of kōwhaiwhai painting, creating a context for the artform within the development of contemporary Māori art. In 2020 Adsett was honoured by the Arts Foundation of New Zealand with an Icon Whakamana Hiranga award "for his profound impact on the Māori community and Māori arts education system within Aotearoa."