The NgÃÂumuwahine River, formerly known as the Ngamuwahine River, is a river of the Bay of Plenty Region of New Zealand's North Island. It flows initially north from its source in the Kaimai Range before turning southeast to meet the Mangakarengorengo River southwest of Tauranga.
Following the passage of the NgàHapà « o NgÃÂti Ranginui Treaty Claims Settlement Act 2025, the name of the river officially became the NgÃÂumuwahine River.