Taumarunui was a parliamentary electorate in the King Country in the Manawatu-Wanganui region of New Zealand from 1908 to 1919.
The electorate was represented by two Members of Parliament: William Thomas Jennings 1908–11 and 1914–19, and Charles Kendall Wilson 1911–14.
Jenings had won the seat back in 1914, but on 14 May 1915, the election was declared void. Jennings won the seat in the subsequent 1915 by-election and held it to 1919.
The electorate was centred on the town of Taumarunui.