The Hutt by-election was a by-election in the New Zealand electorate of Hutt, an urban seat at the bottom of the North Island. The by-election was held on 18 December 1929, and was precipitated by the resignation of sitting United MP Thomas Wilford on who had been appointed the High Commissioner to the United Kingdom by Prime Minister Joseph Ward. The by-election was contested by Walter Nash of the Labour Party, James Kerr from the United Party and Harold Johnston of the Reform Party. The lead up to the by-election was marred by harsh words between candidates.