Tāmihana (born Katu) Te Rauparaha (1820s – October 1876) was a New Zealand Māori leader, Christian evangelist, assessor, writer and farmer.

Kahu and his cousin Te Whiwhi went to the Bay of Islands to ask for a missionary to be stationed in the Kapiti region, with the result that Octavius Hadfield moved and settled there.

Tāmihana worked there until June 1843, in the process easing Ngāi Tahu fears of renewed conflict with his father.

He cut short the trip and returned home on hearing of the Wairau Affray.

On his return Tāmihana became supportive of the idea of a Māori King to unify tribes.