The culture of New Zealand is a synthesis of indigenous Māori, colonial British, and other cultural influences. The country's earliest inhabitants brought with them customs and language from Polynesia, and during the centuries of isolation, developed their own Māori and Moriori cultures. British colonists in the 19th century brought Western culture and had a dramatic effect on the indigenous inhabitants, spreading Western religious traditions and the English language. Over time, a distinct Pākehā or New Zealand European culture emerged.

Māori culture is the customs, cultural practices, and beliefs of the indigenous Māori people of New Zealand. It originated from, and is still part of, Eastern Polynesian culture. Māori culture forms a distinctive part of New Zealand culture and, due to a large diaspora and the incorporation of Māori motifs into popular culture, it is found throughout the world. Within Māoridom, and to a lesser extent throughout New Zealand as a whole, the word Māoritanga is often used as an approximate synonym for Māori culture, the Māori-language suffix -tanga being roughly equivalent to the qualitative noun-ending -ness in English. Māoritanga has also been translated as "[a] Māori way of life." The term kaupapa, meaning the guiding beliefs and principles which act as a base or foundation for behaviour, is also widely used to refer to Māori cultural values.