The Battle of Hingakaka was fought between two Māori armies of the North Island near Te Awamutu and Ōhaupō in the Waikato, probably in about 1807. It was the largest battle ever fought in New Zealand. The attacking army consisted of Ngāti Toa, Ngāti Raukawa and allied tribes from the west coast south of the Waikato, the southern North Island and the east coast. The defending army consisted of Waikato and Ngāti Maniapoto, with support from Ngāti Whātua and Hauraki. The attackers had between 7,000 and 10,000 warriors, greatly outnumbering the defenders with 3,000 warriors, but the defenders, led by Waikato chief Te Rauangaanga, won the battle.