Ngatea (Māori: Ngātea) is a small town on the Hauraki Plains in the North Island of New Zealand.

Ngatea lies on the Piako River, eight kilometres south of its outflow into the Firth of Thames.

It was established in the 1900s as a result of a unique series of canals and stop banks which drained the land and produced rich farmlands for dairy production.

Before the 2023 census, Ngatea had a larger boundary, covering 3.35 km2 (1.29 sq mi).

Although some people chose not to answer the census's question about religious affiliation, 54.8% had no religion, 32.2% were Christian, 1.2% had Māori religious beliefs, 0.4% were Hindu, 0.4% were Muslim, 0.4% were Buddhist and 1.9% had other religions.