Plunket Society

The Royal New Zealand Plunket Trust provides a range of free services aimed at improving the development, health and wellbeing of children under the age of five within New Zealand, where it is commonly known simply as Plunket. Its mission is "to ensure that New Zealand children are among the healthiest in the world". Much of Plunket's work is organised by volunteer bases throughout New Zealand.

It was an incorporated society named the Royal New Zealand Plunket Society until 1 January 2018, when it became a charitable trust under the Charitable Trusts Act 1957.