In Māori mythology, Rongo or Rongo-mā-Tāne is a major god (atua) of cultivated plants, especially kumara, a vital crop. Other crops cultivated by Māori in traditional times included taro, yams (uwhi), cordyline (tī), and gourds (hue). Because of their tropical origin, most of these crops were difficult to grow except in the far north of the North Island, hence the importance of Rongo in New Zealand.

Māori mythology and Māori traditions are two major categories into which the remote oral history of New Zealand's Māori may be divided. Māori myths concern tales of supernatural events relating to the origins of what was the observable world for the pre-European Māori, often involving gods and demigods. Māori tradition concerns more folkloric legends often involving historical or semi-historical forebears. Both categories merge in whakapapa to explain the overall origin of the Māori and their connections to the world which they lived in.