Haddon Vivian Donald (20 March 1917 – 23 April 2018) was a New Zealand soldier, businessman and politician. He was a member of the National Party. He was the oldest living former New Zealand Member of Parliament, and, prior to his death, the highest-ranking living New Zealand army officer of World War II. He served in Parliament from 1963 to 1969. He was born in Masterton, New Zealand.