Gordon Macdonald, 1st Baron Macdonald of Gwaenysgor KCMG PC (27 May 1888 – 20 January 1966) was a British Labour Party politician and Newfoundland's final British governor as well as the last chairman of the Commission of Government serving from 1946 until the colony joined Confederation in 1949 and became a province of Canada.
Macdonald was born in Gwaenysgor, near Prestatyn, Flintshire, Wales. His father, Thomas Macdonald, and his mother, Ellen, were both Welsh. The family moved to the Lancashire Coalfield where he was brought up, his father working as a coalminer in a pit near Ashton in Makerfield. Educated in a local elementary school, he initially followed his father into the collieries aged 13. He subsequently won a scholarship to Ruskin College.
In 1920 he was elected to Wigan Board of Guardians, in 1924 became president of a local co-operative society and in the same year a miner's agent for the Miners' Federation of Great Britain.