William Hugh Montgomery (14 September 1866 – 27 July 1958) was a New Zealand politician of the Liberal Party, from the Canterbury region. He was the son of William Montgomery, who had represented the Akaroa electorate. When John Hall retired from the at the, Montgomery stood as a Liberal and defeated the senior politician William Rolleston. Montgomery represented the electorate in the 12th and 13th parliaments until 1899, when he was defeated. In the 1919 King's Birthday Honours, Montgomery was appointed a Commander of the Order of the British Empire, for services as assistant director of the Base Records Office during World War I. Montgomery died at his home Waiwera in Little River, Canterbury in 1958, aged 91 years.