Allan McDonald was a 19th-century Member of Parliament from the Gisborne Region of New Zealand.
He represented the East Coast electorate from to 1884, when he resigned. The next year he was elected mayor of Gisborne unopposed, but resigned before the 1886 election due to the death of his property manager. He went missing on 24 May 1893, last being seen at a hotel on Flinders Street in Melbourne.