Haddon Vivian Donald, DSO, MC, ED (20 March 1917 – 23 April 2018) was a New Zealand soldier, businessman and politician of the National Party. He was the oldest living former New Zealand Member of Parliament, and at the time of his death, was the highest-ranking New Zealand army officer of World War II living. During the war, Donald served as an officer for the 22nd Battalion rising to the rank of lieutenant colonel. After his military service, Donald represented Wairarapa in the parliament from 1963 to 1969.