The Tukituki River is found in the eastern North Island of New Zealand. It flows from the Ruahine Ranges to the Pacific Ocean at the southern end of Hawke's Bay.
The river flows for 105 km, firstly east and then northeast, passing through the town of Waipukurau before flowing into Hawke's Bay close to the city of Hastings. There, the Tukituki Valley is separated from Havelock North/Hastings by the craggy range of hills that includes Te Mata Peak.