thumb|200px|Te Mamaku
Hēmi Tōpine Te Mamaku (died June 1887) was a Māori chief in the Ngāti Hāua-te-rangi iwi from the Whanganui region of New Zealand's North Island.
Te Mamaku was born probably in the late 18th century and raised in the Whanganui area. As tribal chief he commanded a pā at Tuhua, at a strategic position on the Ohura River, north of Taumarunui. Afterwards, he sent letters to other chiefs in the Whanganui area urging them to join in the conflict. Some were intercepted and forwarded to the government, which may have precipitated George Grey's decision to arrest Te Rauparaha.
Te Mamaku was baptised by Richard Taylor and took the baptismal name Hēmi Tōpine (James Stovin) on 25 December 1853.