The Waioeka River is in the eastern Bay of Plenty Region of New Zealand's North Island. Its name was officially changed to Waioweka River in 2024. The river flows northwards for from Te Urewera National Park to reach the sea at à Âpà Âtiki. It shares its estuary with the à Âtara River.
The area around the Waioeka valley was the scene of fighting during the New Zealand wars.