Ngāti Hauā is a Māori iwi of the eastern Waikato of New Zealand. It is part of the Tainui confederation. Its traditional area includes Matamata, Cambridge, Maungakawa, the Horotiu district along the Waikato River and the Maungatautari district, and its eastern boundary is the Kaimai Range. Leaders of the tribe have included Te Waharoa (1820s and 1830s), his son Wiremu Tamihana (1840s to 1860s) and Tamihana's son Tupu Taingakawa. The tribe has played a prominent role in the Māori King Movement, with Tamihana and descendants being known as the "Kingmakers".