Donald Hogarth McDonald (January 11, 1867 – 1928) was a Canadian politician.
Born in 1867 in Qu'Appelle, Saskatchewan, Donald was first elected to the North-West Territories Legislature in an 1896 by-election, he was re-elected for 2 more terms until 1905.
In the 1902 North-West Territories election Donald became leader of the Northwest Territories Liberal Party, and served as leader of the official opposition during the 5th North-West Legislative Assembly.
Donald came out of retirement during the 1921 Saskatchewan general election and was elected as an Independent member for South Qu'Appelle to the Legislative Assembly of Saskatchewan.