Manawhenua was a New Zealand rugby union team which briefly existed as an amalgamation of the Manawatu and Horowhenua unions. The merger lasted from 1925 until 1933.
In Manawhenua's short existence it managed to take part in six Ranfurly Shield matches between 1927 and 1929. Manawhenua had three successful matches in 1927 when it took the Shield off Wairarapa and defended it twice before losing to Canterbury.